43. have gone
44. does your son have to
45. came
46. was raining
47. was speaking
48. did not have
43.haven't gone
44.Had...had to
45.came
46.is raining
47.was speaking
48.didn't have
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Hay nhất plz !!!!
Hai người cùng xuất phát tại hai địa điểm A và B vào lúc 6h, AB cách nhau 60km. Người thứ nhất đi xe máy từ A đến B với vận tốc vị 500m/phút, người thứ hai đi xe đạp từ B ngược về A với vận tốc v2=2s/9 m/s. a .Hỏi sau bao lâu hai xe cách nhau 20km. c. Nếu xe thứ nhất khởi hành từ lúc 6h, xe thứ hai khởi hành từ lúc 7h thì hai xe gặp nhau lúc mấy giờ? Điểm gặp nhau cách A bao xa? giúp mình câu 1 b,1c với
PART III - Put the correct form of the words: 1. Joanne wants to become a __________ in the future. (science) 2. Many rural areas in Viet Nam have been __________ in the last few years. (urban) 3. The book was so ________ that we didn’t want to read it. (interest) 4. There are a lot of _______________ in the competition. (contest) 5. Linda’s __________ made the party less exciting. (absent) 6. He didn’t win the championship, so he felt very _____________ . (hope) 7. Because of his _________, they failed the exam. (lazy) 8. Vinamilk company has served customers a lot of _____________ recently. (produce) 9. Tet holiday is one of the most important __________ for Vietnamese people. (celebrate) 10. Laura loves all of Vietnamese dishes, _______________ Nem. (special) PART IV - Find and correct a mistake in each sentence: 1. The boy was enough intelligent to solve that problem. 2. The girl helped me with the needlework yesterday is my classmate. 3. They asked their friends not play soccer in the road. 4. Hanh is the same weigh as my sister. 5. It is careless for you to leave your book on the train. 6. My brother used to going to the movies with our father. 7. Hoa asked me if I could have a picnic with her in the country or not. 8. Most of monkeys both in the forest and in the zoo are interesting in bananas. 9. It takes Nam thirty minutes going to school on foot everyday. 10. Not only Ha but also her friends was present in my fifteenth birthday party. Part V- Choose the most suitable answer A, B, C, or D to complete the following passage. Air pollution is caused ________(1) ill health in human beings. In a lot of countries, there are ________(2) limiting the amount of smoke factories can produce although there is not enough _______(3) on the effects of smoke on the atmosphere. Doctors have ________(4) that air pollution causes ________ (5) diseases. The gases from the exhausts of cars _______(6) also increased air pollution in most cities. The ________ (7) of petrol produces a poisonous gas, which is often collected in busy streets circled by high buildings. Children _______(8) in areas where there is a lot of lead in the atmosphere can not think as ________(9) as other children, and are clumsy when they _______(10) their hands. 1. A. from B. on C. over D. of 2. A. laws B. ideas C. problems D. regulations 3. A. news B. article C. information D. newspaper 4. A. agreed B. pointed C. disagreed D. proved 5. A. lung B. heart C. liver D. stomach 6. A. had B. have C. has D. having 7. A. water B. lead C. gas D. exhaust 8. A. lived B. live C. to live D. living 9. A. quick B. slowly C. quickly D. slow 10. A. touch B. use C. handle D. collect PART VI - Read and fill a suitable word in each blanket: Christmas is always held ________(1) December the twenty fifth every year. Every family in England decorates a Christmas tree and puts ________(2) in the middle of the living room. And Santa Claus plays an important _________(3) in this festival. There is a poem to relate him. In 1823, the patron saint of children, Saint Nicholas appeared in a poem ________(4) A Visit Saint Nicholas. The character in the poem _______(5) a fat jolly man who wore a _______ (6) suit and gave children ________ (7) on Christmas Eve. The poem, which was ________(8) by Clement Clarke Moore, an American professor, became popular __________(9) the USA. Santa Claus is based _______(10) the description of Saint Nicholas in this poem. IX. Rewrite the following sentences so that the meanings stay the same. 1. She eats more chocolate than I. I ……………………………………………………………. 2. Vinh keeps forgetting his homework. Vinh is ……………………………………………………………. 3. Keeping the environment clean is very important. It’s…………………………………………………………………. 4. No one helped Lan to do the homework. Lan ……………………………………………………………… 5. It’s three years since I last spoke to her. I haven’t…………………………………………………………… 6. Tam doesn’t type as fast as she used to. Tam used …………………………………………………………. 7. How long is it since you used the car? When …………………………………………………………….. 8. We started living here 15 years ago. We have…………………………………………………………... 9. Let’s meet inside the centre ,at the cafe corner? How………………………………………………………………. 10. Nam is very strong, he can do heavy work. Nam is strong ………………………………………………………………..
PART I - Choose the word A, B, C or D whose underlined part is pronounced differently from the others. 1. A. rubbish B. uniform C. umbrella D. thumb 2. A. appear B. weather C. bread D. headache 3. A. project B. belong C. woman D. concert 4. A. think B. though C. mother D. these 5. A. eraser B. baseball C. suitcase D. waterfall Choose the word A, B, C or D whose main stress is different from the others in the group. 6. A. pencil B. raincoat C. arrive D. notebook 7. A. enjoyable B. power C. permission D. explore 8. A. photography B. minority C. heroic D. visit 9. A. translation B. difficult C. unluckily D. agree 10. A. Vietnamese B. engineer C. celebration D. product PART II- Choose the best answers to completes each sentence. 1. Hoa __________________ coins and stamps since she was six. A. was collecting B. has collected C. collected D. will collect 2. His brother is a _________________ boy. He always tells a joke. A. handsome B. humorous C. sociable D. energetic 3. Do you mind if I __________________ your car to work? A. drive B. driving C. to drive D. drove 4. They are ____________ that their son won the championship. A. delighted B. pleasing C. sad D. interesting 5. My sister regretting ___________ Mai’s glasses yesterday. A. to break B. broken C. breaking D. break 6. Hoa dances more _______________ than her classmates. A. beauty B. beautiful C. beautifully D. beautify 7. They will hold a meeting in the large room ____________ the morning of next Sunday. A. in B. on C. at D. of 8. Minh loves playing chess _____________ his sister enjoys skipping in their free time. A. when B. because C. while D. during 9. One hundred dollars ______________ an big amount of money for her. A. is B. are C. were D. is being 10. Don’t overheat the victim _____________ blankets or coats. A. on B. for C. with D. from 11. We are going to __________ a small plane to Ha Long Bay this weekend. A. drive B. ride C. take D. give 12. They as well as Mai ___________________ in the field at this time last Sunday. A. was working B. were working C. has worked D. have worked 13. Thanks _______ Alexander Graham Bell’s invention, I can communicate with each other easily. A. for B. from C. on D.to 14. We must _________ the environment from the pollution every day. A. save B. protest C. protect D. waste 15. In our opinion, there are a lot of differences _________ two twins. A. from B. without C. with D. between 16. If you _______________ your work, let’s play volleyball with them in the garden. A. finish B. are finishing C. have finished D. will finish 17. Have a picnic with ______________ in the mountain tomorrow. A. Hanh and I B. Hanh and me C. I and Hanh D. me and Hanh 18. Study is no _____________ restricted to just one location. A. longer B. long C. longest D. the longest 19. My son was hit _______________ a stick while he was working in the field. A. by B. with C. without D. out 20. Nam and Manh have played badminton for two hours, but __________ of them are tired. A. none B. both C. neither D. all
Trên mạch thứ nhất của một gen ở một sinh vật nhân sơ có tỉ lệ A1+T1/G1+X1=1/4. Hãy xác định: a. Tỉ lệ G2+X2/A2+T2 trên mạch thứ hai của gen. b. Nếu mạch thứ nhất của gen là mạch khuôn được sử dụng để tổng hợp phân tử mARN thì phân tử này có tỉ lệ A+U/tổng số nu của nó là bao nhiêu?
Làm hộ nha 5 giờ đi hok rồi Có 1 câu thôi
Viết đoạn văn cảm nghĩ của em về kiều ở lầu ngưng bích (đừng chép mạng nhé)
hãy nêu vị trí hình dạng của trái đất
∆ABC vuông tại A góc C =40° BD là đường phân giác góc B, cạnh BA=21 a, tính AC b, Tính BC C, tính BD
mn ơi giúp em bài 18 thôi ạ. Em cảm ơn!!
2. Một tụ điện 6 uF được tích điện dưới một hiệu điện thế 12V. a. Tính điện tích của mỗi bản tụ. b. Hỏi tụ điện tích lũy một năng lượng cực đại là bao nhiêu ? c. Tính công trung bình mà nguồn điện thực hiện để đưa 1 e từ bản mang điện tích dương tới bản mang điện tích âm ?
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