Cho tam giác ABC vuông tại A. Vẽ AH vuông góc với BC tại H. Trên đoạn thẳng AH lấy điểm D. Trên tia đối của tia HA lấy điểm E sao cho HE = AD. Đường thẳng vuông góc với AH tại D cắt AC tại F. Chứng minh 0BEF=90

Các bạn làm hộ mình từ câu 11đến câu 33nhé đề bài là bài tập chia thì hiện tại đơn và thì hiện tại tiếp diễn

We saw a _______ of water coming from the water cannons at La Tomatina Festival. * 2 điểm jet goggles highlight truck Hurry up or we can’t _______ the last bus home. * 2 điểm keep follow go catch We should _______ the street at the zebra crossing * 2 điểm walk through walk walk cross walk on Cyclist and motorists have to wear a _______ when they ride a motorbike. * 2 điểm helmet hard hat cap mask You are allowed to walk on the _______ * 2 điểm pavement road sign crossroad fork Big cities often suffer from _______ in the rush hour. * 2 điểm traffic congestion traffic signs breakdown accident Drivers have to _______ your seatbelt whenever they drive. * 2 điểm put fasten tie put on Avoid the rush hour and you won’t get stuck in a _______. * 2 điểm train ticket speed limit traffic jam railway station If you don’t have _______, you will able to drive on the road. * 2 điểm mask helmet driving license warm clothes Be careful or you will fall _______ your bicycle. * 2 điểm off of in on I saw a _______ of flower floats when I attended the festival last year. * 2 điểm celebration parade culture perform Diwali, the Hindu Festival of Lights, shows the _______ richness of this country. * 2 điểm cultured culture culturally cultural There are many _______ on the street: cars, buses, bikes, motorbikes. * 2 điểm machines transport vehicles engines This movie is about the war between the planets in the space. It is a_______ movie. * 2 điểm comedy sci-fi romantic documentary Carnival (Carnaval in Portuguese) is a popular _______ in many countries in South America. * 2 điểm festival film parade celebrate If people ________ the rules, there are no more accidents. * 2 điểm obey remember take care of follow About a quarter of ______ accidents are the result of driving under the influence of alcohol. * 2 điểm congestive traffic traffics congestion In September, he will visit museums in Berlin then ______ the train to Moscow! * 2 điểm hold take ride drive

Give a _______ before you turn left or right. * 2 điểm sound signal sign turn This young _______ has made four films so far. His recent film has won the Oscar for Best Director. * 2 điểm actor actress director scriptwriter The main _______is played by Tom Hanks. * 2 điểm character director actress film maker This film contains some _______ of violence. * 2 điểm screens sceneries scents scenes When there is a traffic jam, it _______ me a very long time to go home. * 2 điểm takes costs lasts spends You must _______ the traffic rules for your safety and that of other road users. * 2 điểm allow obey keep be It is _______to drive on the left in Vietnam. * 2 điểm illegal legal allowed safe ______ is an area of the road marked with broad black and white lines where vehicles must stop for people to walk across. * 2 điểm zebra cross zebra crossing zebra across zebra acrossing There is a love story in it, and it is very funny. I suppose you call it a _______. * 2 điểm thriller horror film romantic comedy action film The film is only 90 minutes _______ but it is very interesting. * 2 điểm shortness length long short What do you know about the main _______ of Yellow flowers on the green grass? * 2 điểm scriptwriter film makers directors characters Mr. Bean’s Holiday is a _______ film – I was laughing from beginning to end. * 2 điểm hilarious violent moving scary When riding a skateboard, children should obey all ______. * 2 điểm traffic rules traffic choices traffic regulars traffic Don’t be surprised if you get stuck in a traffic ______ in the morning when you stay in Ho Chi Minh City. * 2 điểm light circle jam warden The child always needs to ______ a helmet when riding with you. * 2 điểm put wear bring pick My English teacher often drives his car _______on the way to school. * 2 điểm carefully careless careful caring The bus is the main public _______ in Vietnam. * 2 điểm tricycle vehicle transport travel A _______ is a play in a theater or on television or radio, or plays and acting generally. * 2 điểm drama comedy film action We found the plot of the film _______. * 2 điểm interested boring bored acting We are really _______ about going to the cinema tonight. * 2 điểm excited pleased interested amused A film in which strange and frightening things happen is called a/an _______. * 2 điểm thriller comedy drama animation In Titanic, it _______ Leonardo DiCaprio as Jack Dawson, a poor artist. * 2 điểm acts stars directs shows The Vietnamese people _______ the New Year on the first three days of January according to the lunar calendar. * 2 điểm celebrate host take place perform The festival _______ every year at the end of August. * 2 điểm takes takes place held occurs He’s having a party in _______ of his 84th birthday. * 2 điểm anniversary ceremony memory celebration We like the film very much. The _______ are unforgettable and the plot is gripping. * 2 điểm characters acting style action Easter is a/an _______ festival which is celebrated in many countries. * 2 điểm enjoy amused interest joyful The people who watch a film are called _______. * 2 điểm actors characters audiences directors A film that tries to make audiences laugh is called _______. * 2 điểm comedy romantic comedy documentary cartoon Titanic is a romantic film, which was _______ by James Cameron. * 2 điểm shown played directed starred Critics say Pirates of Southeast Asia is shocking but it is a _______. * 2 điểm survey must-see film review She is going to Rio Carnival to watch _______ dance. * 2 điểm performances performers perform performs We saw a _______ of water coming from the water cannons at La Tomatina Festival. * 2 điểm jet goggles highlight truck Hurry up or we can’t _______ the last bus home. * 2 điểm keep follow go catch We should _______ the street at the zebra crossing * 2 điểm walk through walk walk cross walk on Cyclist and motorists have to wear a _______ when they ride a motorbike. * 2 điểm helmet hard hat cap mask You are allowed to walk on the _______ * 2 điểm pavement road sign crossroad fork Big cities often suffer from _______ in the rush hour. * 2 điểm traffic congestion traffic signs breakdown accident Drivers have to _______ your seatbelt whenever they drive. * 2 điểm put fasten tie put on Avoid the rush hour and you won’t get stuck in a _______. * 2 điểm train ticket speed limit traffic jam railway station If you don’t have _______, you will able to drive on the road. * 2 điểm mask helmet driving license warm clothes Be careful or you will fall _______ your bicycle. * 2 điểm off of in on I saw a _______ of flower floats when I attended the festival last year. * 2 điểm celebration parade culture perform Diwali, the Hindu Festival of Lights, shows the _______ richness of this country. * 2 điểm cultured culture culturally cultural There are many _______ on the street: cars, buses, bikes, motorbikes. * 2 điểm machines transport vehicles engines

1. She gave us more information.  More information…………………………………………… 2. The chief engineer was instructing all the workers of the plan. All the workers………………………………………………. 3. They can’t make tea with cold water. Tea…………………………………………………………… 4. Somebody has taken some of my books away. Some of my books…………………………………………. 5. They will hold the meeting before May Day.  The meeting………………………………………………. 6. They have to repair the engine of the car.  The engine………………………………………………… 7. The boys broke the window and took away some pictures.  The window…………………………and some pictures……………………………. 8. People spend a lot of money on advertising every day.  A lot of money…………………………………………………. 9. Teacher is going to tell a story.  A story……………………………………………………….. 10. Mary is cutting a cake with a sharp knife.  A cake…………………………………………………………. 11. The children looked at the woman with a red hat.  The woman with a red hat………………………………………. 12. They have provided the victims with food and clothing.  The victims…………………………………………………….. 13. People speak English in almost every corner of the world.  English…………………………………………………………….. 14. You mustn’t use this machine after 5:30 p.m.  This machine……………………………………………………… 15. People grow rice in Asia.  Rice………………………………………………………………

Cho đoạn thẳng OB, gọi I là trung điểm của OB. a) Tính độ dài IB b) Trên tia OB lấy các đoạn thẳng OA= 2cm; Tính độ dài AB. c) Trong 3 điểm I, A, B điểm nào nằm giữa 2 điểm còn lại? Vì sao? Mọi người giúp mình đi . Cảm ơn mọi người nhiều

Give a _______ before you turn left or right. * 2 điểm sound signal sign turn This young _______ has made four films so far. His recent film has won the Oscar for Best Director. * 2 điểm actor actress director scriptwriter The main _______is played by Tom Hanks. * 2 điểm character director actress film maker This film contains some _______ of violence. * 2 điểm screens sceneries scents scenes When there is a traffic jam, it _______ me a very long time to go home. * 2 điểm takes costs lasts spends You must _______ the traffic rules for your safety and that of other road users. * 2 điểm allow obey keep be It is _______to drive on the left in Vietnam. * 2 điểm illegal legal allowed safe ______ is an area of the road marked with broad black and white lines where vehicles must stop for people to walk across. * 2 điểm zebra cross zebra crossing zebra across zebra acrossing There is a love story in it, and it is very funny. I suppose you call it a _______. * 2 điểm thriller horror film romantic comedy action film The film is only 90 minutes _______ but it is very interesting. * 2 điểm shortness length long short What do you know about the main _______ of Yellow flowers on the green grass? * 2 điểm scriptwriter film makers directors characters Mr. Bean’s Holiday is a _______ film – I was laughing from beginning to end. * 2 điểm hilarious violent moving scary When riding a skateboard, children should obey all ______. * 2 điểm traffic rules traffic choices traffic regulars traffic Don’t be surprised if you get stuck in a traffic ______ in the morning when you stay in Ho Chi Minh City. * 2 điểm light circle jam warden The child always needs to ______ a helmet when riding with you. * 2 điểm put wear bring pick My English teacher often drives his car _______on the way to school. * 2 điểm carefully careless careful caring The bus is the main public _______ in Vietnam. * 2 điểm tricycle vehicle transport travel A _______ is a play in a theater or on television or radio, or plays and acting generally. * 2 điểm drama comedy film action We found the plot of the film _______. * 2 điểm interested boring bored acting We are really _______ about going to the cinema tonight. * 2 điểm excited pleased interested amused A film in which strange and frightening things happen is called a/an _______. * 2 điểm thriller comedy drama animation In Titanic, it _______ Leonardo DiCaprio as Jack Dawson, a poor artist. * 2 điểm acts stars directs shows The Vietnamese people _______ the New Year on the first three days of January according to the lunar calendar. * 2 điểm celebrate host take place perform The festival _______ every year at the end of August. * 2 điểm takes takes place held occurs He’s having a party in _______ of his 84th birthday. * 2 điểm anniversary ceremony memory celebration We like the film very much. The _______ are unforgettable and the plot is gripping. * 2 điểm characters acting style action Easter is a/an _______ festival which is celebrated in many countries. * 2 điểm enjoy amused interest joyful The people who watch a film are called _______. * 2 điểm actors characters audiences directors A film that tries to make audiences laugh is called _______. * 2 điểm comedy romantic comedy documentary cartoon Titanic is a romantic film, which was _______ by James Cameron. * 2 điểm shown played directed starred Critics say Pirates of Southeast Asia is shocking but it is a _______. * 2 điểm survey must-see film review She is going to Rio Carnival to watch _______ dance. * 2 điểm performances performers perform performs

Ex3. Choose A/B/C/D: 1. …………………..does it take to go from Ha Noi to Ho Chi Minh City by plane? A. How far B. How much C. How long D. How many 2. There……………a bus station in the city center, but it has been move to the suburds. A. used to be B. used to have C. use to have D. were 3. I………………..marbles when I was young but now I don’t. A. play B. used to play C. have played D. didn’t use to play 4. We should…………….the street at the zebra crossing. A. walk B. walk on C. walk through D. walk cross 5. Drivers have to……………….their seatbelt whenever they drive. A. put B. tie C. fasten D. put on 6. We should wait for the traffic lights……………….before you cross the street. A. turn green B. to turn green C. turn yellow D. to turn yellow 7. All of us have to obey………………..strictly. A. traffic rules B. traffic C. traffic jam D. regular 8. Cyclists and motorists have to wear……………when they ride a motorbike. A. hard hat B. cap C. mask D. helmet 9. He forgot to give a…………….before he turned left and got a ticket. A. signal B. sign C. light D. hand Ex3. Put in order 1. how / is / it / far / your / house / from / to / school / your? ……………………………………………………………………………………………? 2. it / not / is / far / to / to / very / go / the / station / railway. ……………………………………………………………………………………………. 3. we / obey / must / always / rules / traffic / our / for / safety / the. ……………………………………………………………………………………………. 4. near / school / our / there / is / a / children crossing / sign / so / you/ must / cross / the / road / there. ………………………………………………………………………………………………… Ex4. Rewrite the sentences without changing its meaning 1. There did not use to be many cars on the road before. Now there are………………………………………………………………………………… 2. My brother was a professor at Ha Noi University some years ago, but now he has a job as an engineer at a big company. My brother used……………………………………………………………………………… 3. Linh walked to school some years ago but now she cycles there. Linh used…………………………………………………………………………………….. 4. My father swam in the pool near his house when he was a boy. My father used………………………………………………………………………………

Giúp mình với các bạn ơi!!!!! a) Quan sát tiêu bản ở tế bào 1 người ta thấy tế bào này mang bộ NST bị biến đổi về số lượng. Do sơ suất người ta chỉ quan sát thấy ở NST số 3 có 3 alen kí hiệu là aaa. Hãy xác định dạng đột biến của tế bào trên? b) Nêu phương pháp phân biệt cơ thể trên với cơ thể bình thường

Cho em xin vài cái phương trình hóa học có X Y với ạ