1. I must go now.I promised _______________ late. (not being / not to be / to not be / I won’t be) 2. Tom ______________ his hand when he was cooking the dinner. (burnt / was burning / has burnt / burns) 3. She asked me _____________ a driving licence. (if I have / whether I have / if I had / whether I have had) 4. Have you decide where ___________for your holidays ? ( going / to go / will you go / you went) 5. The Pyramid of Cheops is one of the seven ____________ of the world. (Pyramids / temples / landmarks / wonders) 6. My father used _______ a lot , but now we stop ___________. (to smoke , smoking / to smoking , smoking / to smoke , to smoke / smoking , smoking) 7. I’m sure _____________there are no trains from HN on Saturday.( if, that, whether, what ) 8. In order to keep fit , we should do exercises _____________. (regular / regularly / regulating / regulation) 9. Many people ___________ that were other wonders , which the ancient Greeks knew nothing about. (blame / wonde / claim / suggest) 10. She is always asking me if the Greet Wall of China ___________ one of the wonders of the world. (is / was / will be / has been) 1. Millions of Christmas cards _____________every year.(send / are sent / are sending / was sent) 2. First prize was awarded _____________ Jackie Stevens , the smallest girl on the team. (with / on / for / to) 3. He had his father ____________his Christmas card.(decorated/decorating/to decorate/decorate) 4. I saw him ______________ the flowers in the garden. (watering / watered / be watered / is watering) 5. Paul is said ____________ the brightest student in the class. (was / to be / being / he was) 6. A contest in which participants have to fetch water from the river is called ___________ contest. (water-fetch / fetching-water / water-fetching / fetch-water) 7. The poem , ____________ by Clement Clarke Moore , became popular in the USA. (that is written / which id written / which was written / that was written) 8. They tried to make a fire by ___________ pieces of bamboo together. (adding / separating / rubbing / taking) 1. When we were in Italy , we spent a few days __________ Venice. (at / on / in / to) 2. They are good friends.They ______________ each other for a long time. (know / have known / knew / were knowing) 3. How about ___________ to Thai Binh Market ? (going / to go / went / gone) 4. “What ____________ in New York ? “ – “It’s very clod and humid” (the weather like / does the weather like / the weather is like / is the weather like) 5. “_______ to come and have dinner with us ? “ – “I’d love to but I’m busy” (Do you like / Would you mind / Would you like / Could you please) 6. Can you tell me where ___________ ?(she does / does she / she is / is she) 7. I was reading while my sisters _____________ with their dolls. (played / were playing / have played / would play) 8. Mount Rushmore _____________ from more than 100 kilometers away. (saw / can see / was seen / can be seen) 9.Geogre showed me some pictures ______by his father .(paint / painting / painted / that painted) 10. We were having dinner when the phone ___________.(ring / rang / was ringing / has rung) 1.What can we do to prevent people ___________ throwing drink cans away ?(in / of / on / from) 2. We haven’t seen each other _________ last January.(for / since / on / in) 3. Are you free ___________ Tuesday evening ? (in / at / on / for) 4. Attempts to___________him failed and he died soon afterward.(revive /return /revise / reward) 5. Compost is a wonderful natural ___________.(substance / material / garbage / fertilizer ) 6. All this unnecessary _________creats so much waste.(pack / package / packing / packaging) 7. We have to get up early ____________ late for class . (so as to be / so that not to be / so as not to be / in order not to be) 8. Chicago is __________ right on the shore of Lake Michigan. (placed / situated / laid / set) 9. We are all _____________ that you passed your English exam.Congratulation! (delighted / relieved / afraid / certain) 10. Excuse me ! I’m doing my homework.______________ turning down your radio a bit ? (Would you mind / Can you / Would you please / Could you)

12.When did you first see him?-> How long ______________________________________ . 14.She last eat this kind of food in 2000. -> She hasn’t _____________________________________________________________ . 15. They held a village festival last week. -> A village festival ________________________________________________________ . 16.They made the fire in the traditional way.-> The fire _____________________________ . 17.They grow hundreds of trees every year.-> Hundreds of trees ______________________ . 18.My sister cleans the house every moring.-> The house____________________________ . 19.They bulit this chuch in 1902.-> This church ___________________________________ . 20.I did my homework last night.-> My homework ________________________________ . 21.Nam wrote these letters.-> These letters _______________________________________ . 22) “Do you know My Son, Nga?” asked Nhi ->Nhi asked Nga __________________________________________________________ . 23) “Is it far from Ha Noi?” ->Nhi asked Nga ____________________________________ . 24) “Is My Son in Quang Nam province?” ->The tourists asked ________________________________________________________ . 25) “Do many people live at My Son?” ->The visitors wanted to know _______________________________________________ . 26) “Do many tourists visit My Son every year?” ->They asked me __________________________________________________________ . 27) “Do you want to visit My Son one day?” ->Nhi asked __________________________________________________________

Giúp mình từ bài 12- bài 14 với ạ

a,(-9).7 b,(-15) . 10 c, (-25) d, (-7).0

(4a^4 + 5b^4)/(4c^4 + 5d^4) = (a^2 × b^2)/(c^2 × d^2)

Mik hơi ngu toán .M.n giúp mik nha

Trọng lượng vật A gấp 4 lần trọng lượng vật B và lớn hơn B 60N. Xác định trọng lượng của vật A và vật B

(Phần II) Reading comprehension IV. Read the following passage then answer the questions: Gong culture in the Central Highlands of Viet Nam has been recognized by UNESCO as a Masterpiece of the Intangible Heritage of Humanity. Gong culture covers five provinces of the Central Highlands: Kon Tum, Gia Lai, Dak Lak, Dak Nong and Lam Dong. The masters of gong culture are the ethnic groups of Bahnar, Sedang, Mnong, Coho… The Gong Festival is held annually in the Central Highlands. In the festival, artists from these provinces give gong performances, highlighting the gong culture of their own province. For the ethnic groups of the Central Highlands, gongs are musical instruments of special power. It is believed that every gong is the symbol of a god who grows more powerful as the gong gets older. Therefore, gongs are associated with special occasions in people’s lives, such as the building of new houses, funerals, crop praying ceremonies… The gong sound is a way to communicate with the gods. Answer the questions: 1. Where does Gong culture exist? ……………………………………………………………………………………………… 2. How often is the Gong Festival held? ……………………………………………………………………………………………… 3. What do artists do in the Gong Festival? ……………………………………………………………………………………………… 4. Are Gongs pieces of folk music? ……………………………………………………………………………………………… 5. Is the gong sound a way to communicate with the ancestors? …………………………………………………………………………………………… V. Choose the correct word for each blank in the following passage. Spring is a time when there are many festivals in our country. Among them, Hoa Ban Festival is the most beautiful and interesting and it takes place in Lai Chau. It is typical of the (1)………life of the Thai people. In the second lunar month of the year, when it (2) ……..warmer and hoa ban - a kind of beautiful flower in the northwest mountainous area - blossoms, Hoa Ban Festival is (3)………... This is a great time for everyone, (4) …………… for boys and girls. The boy (4)………… the most beautiful flower and gives it to his girlfriend. This is not only a time for love but also for the Thai people to (5)………..for good crops, for happiness, and express their special thanks to the Gods and (6) …………... The festival is always full of songs and prayers. 1. A .minor B. cultural C. custom D. festival 2. A. gets B. goes C. comes D. runs 3. A. seen B. arranged C. observed D. celebrated 4. A. largely B. especially C. generally D. typically 5. A. ask B. look C. pray D. call 6. A. fathers B. relatives C. families D. ancestors Writing skills. VI. Use the suggested words and phrases to make meaningful sentences. 1. We / have / dinner / when / telephone/ ring/./ ……………………………………………………………………………………… 2. I / walk / along / street / when / sudden / I / hear / footsteps / me /./ Somebody / follow/ me /./ I / frighten / and / start/ run/./ ………………………………………………………………………………………………………… …………………………………………………………………… 3. When / we / watch / a / television program / call / “ Litte flowers” / last night/ the electricity/ go / out/./ ………………………………………………………………………………………………………… ……………………………………………………………………. 4. What/ be / you / and / friends / do / at/ 4 p.m/ yesterday / afternoon/?/ ………………………………………………………………………………………. 5. While / I / wait/ at/ the / bus stop /,/ it / start/ rain / heavily /./ ………………………………………………………………………………… Giúp m vs, m ngu Tiếng Anh

Cho m(g) Fe2O3 tác dụng vừa đủ với 400ml dung dịch HCl 1,5M thu được dung dịch A a) xác định m b) tìm nồng độ độ mol của dung dịch A, coi thể tích dung dịch thay đổi không đáng để

tính nhanh: -43.92-46.27+46.41