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2 năm trước
Câu 1: nêu điều kiện vật nổi chìm lơ lửng Câu2: một vật bằng đồng có thể tích là 3dm3 tính lực đẩy Acsimet lên vật khi nhúng nó chìm trong nước ? Câu 3: một chiếc sà lan có dạng hình hộp dài 4m rộng 2m . Tính trọng lượng của sà lan biết sà lan ngập sâu trong nc 0,5m. Cho biết trọng lượng riêng của nc là 10000 N/m3 Giúp e với ạ
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I. Choose the word oe phrase (A, B, C or D) that best fits the space in each sentence.1.Would you like to_________________ for dinner this Saturday?A. go toB. come toC. get overD. come over2. We were having dinner when the phone _________________.A. ring B. rang C. was ringingD. has rung3. Can you tell me where __________________________?A. she does B. does she C. she is D. is she4. They are good friends. They _______________________ each other for a long time.A. know B. have knownC. knew D. were knowing5. Can you deliver this package ______________________ hand?A. in B. with C. by D. to6. But there maybe a few____________________ in the morning.A. waterB. rainfall C. raining D. showers7. I didn’t want to meet Paul so when he entered the room I____________________.A. am leaving B. leave C. left D. was leaving8. When I was looking for my passport, I____________________ this old photograph.A. find B. was finding C. am finding D. found9. I can’t eat now. I _____________________a stomachache.A. has B. had C. am having D. have10. I will ____________________you up at your hotel. Shall wesay eight o’clock?A. pickB. get C. makeD. give11. Attempt to ____________________ him failed and he died soon afterward.A. reviveB. returnC. revise D. reward12. Chicago is ___________________ right on the shore of Lake Michigan.A. placedB. situatedC. laid D. set13. What can I do to prevent people_____________________ throwing drink cans away.A. in B. of C. onD. from14. You have to work _________________________ for the coming exam.A. hardly B. more hardlyC. hardD. more hard15. Do you mind_______________________ me a hand with this bag?A. give B. giving C. to give D. to giving16. George showed me some pictures___________________ by his father.A. paint B. painting C. paintedD. that painted17.___________________ the postman came, I was watching TV. A. When B. WhileC. During D. At18. I was reading_________________________ my brother was playing football with his friends.A. when B. whileC. at whichD. at time19. Mount Rushmore___________________ from more than 100 kilometers away.A. sawB. can seeC. was seenD. can be seen20.A new bridge over the river ____________________________ at present. A. build B. is builtC. is building D. is being builtII. Rewrite each of the following sentences in another way so that it means almost the same as the sentence printed before it. 1. My younger brother plays computer games a lot every day.➔My younger brother is _____________________________________________.2. My next-door neighbor keeps singing karaoke at midnight. 4➔My next-door neighbor is__________________________________________.3. Sam keeps leaving her textbook at home.➔Sam is_________________________________________________________.4. When he got home, the children were playing in the garden.➔He got _________________________________________________________.5. While Anna was making dinner, Martin arrived home.➔When__________________________________________________________.6. I was cycling through the park when I heard a strange noise. ➔I heard__________________________________________________________.7. In the middle of our lunch, the phone rang.➔We ____________________________________________________________.8. The other name of Chicago is “The Windy City”➔Chicago is often __________________________________________________.9. May I ask you a question?➔Would__________________________________________________________.10. Could you take me to the airport, please?➔Would _______________________________

II. Choose the correct answer A, B, or C to complete each of the sentences. 1.Alaska is perhaps the most …………… state in the USA. It has over three million lakes. A. puzzling B. festive C. amazing 2.The old tradition of first- footing is still practiced today in …………………….. A. Scottish B. Scots C. Scotland 3.In Canada, the serving of coffee at the end of an evening is a signal that it is time for ……….. A. visitors B. tourists C holiday makers 4.The Maori in New Zealand greet each other by ……………………….. their noses. A. punching B. touching C. blowing 5. Australia is composed of seven ………………….. A. nations B. countries C. states 6.There is a red maple leaf on the ………………… of Canada. A. flag B. banner C. money giúp mình nhé mọi người

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