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2 năm trước
cho hình chóp SABCD có tất cả các cạnh bằng a, đáy ABCD là hình vuông. gọi N là trung điểm SB.tính góc giữa hai đường thẳng AN và CN, AN và SD
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A. PHONETICS I. Find the word which has different sound in the underlined part. 1. A. rest B. help C. garden D. identify 2. A. traffic B. pavement C. plane D. station 3. A. sign B. mistake C. triangle D. drive 4. A. nearest B. head C. bread D. health 5. A. railway B. mail C. sail D. captain B. VOCABULARY AND GRAMMAR I. Complete the sentences with the correct form of “used to” and the verb in bracket. 1. (you/ enjoy) maths at school? 2. I (not like) flying, but I love it now. 3. We (be) friends, but we don’t get on now. 4. (John/ work) for IBM before he came here? 5. Winters (not/ be) as cold as they are now. 6. She (live) with her mother, but now she lives with her father. 7. I (not do) any exercise. 8. (he/ play) for Manchester United? II. Choose the correct option for each gap in the sentences. 1. Drivers have to their seatbelt whenever they drive. A. put B. tie C. fasten D. put on 2. We should wait for the traffic lights before we cross the street. A. turn green B. to turn green C. turn yellow D. to turn yellow 3. All of us have to obey strictly. A. traffic rules B. traffic C. traffic jam D. regular 4. Cyclists and motorists have to wear a when they ride a motorbike. A. hard hat B. cap C. mask D. helmet 5. He forgot to give a before he turned left and got a ticket. A. signal B. sign C. light D. hand 6. does it take you to get to Ho Chi Minh City by plane? - About 2 hours. A. How far B. How much C. How long D. How many 7. There a bus station in the city centre, but it has been moved to the suburbs. A. used to be B. used to have C. use to have D. were 8. I marbles when I was young, but now I didn’t. A. play B. used to play C. have played D. didn’t use to play 9. “ is it from your house to the nearest bus stop?” - “About 50 meters’ A. How far B. How long C. How often D. How much 10. We should the street at the zebra crossing. A. walk B. walk on C. walk through D. walk across 11. Lan used to go to school . A. with bicycle B. by foot C. in car D. by bus 12. Public in my town is good and cheap. A. transport B. tour C. journey D. travel 13. _______ is not very far from here to the city center. A. That B. This C. It D. There 14. When there is a traffic jam, it me a very long time to go home. A. costs B. takes C. lasts D. spends 15. Mai’s dad usually drives her to school her school is very far from her house. A. but B. though C. because D. or 16. Yesterday Hoa and Lan round West Lake. It took them an hour. A. cycle B. cycles C. cycling D. cycled 17. Minh used to his homework late in the evening. A. does B. do C. doing D. did 18. If people the rules, there are no more accidents. A. follow B. take care of C. obey D. remember 19. You should right and left when you go across the roads. A. see B. look C. be D. take 20. Hurry up or we can’t the last bus home. A. keep B. follow C. go D. catch III. When you are in Singapore, you can go about (1) taxi, by bus, or by underground. I myself prefer the underground (2) it is fast, easy and cheap. There are (3) buses and taxis in Singapore and one cannot drive along the road (4) and without many stops, especially on Monday morning. The underground is therefore usually quicker (5) taxis or buses. If you do not know Singapore very well, it is difficult (6) the bus you want. You can take a taxi, but it is (7) expensive than the underground or a bus. On the underground, you find good maps that (8) you the names of the stations and show you (9) to get to them, so (10) it is easy to find your way. 1. A. by B. in C. at D. on 2. A. but B. because C. when D. so 3. A. few B. a lot C. many D. some 4. A. quick B. quickly C. quicker D. quickest 5. A. so B. like C. than D. as 6. A. find B. to find C. finding D. found 7. A. less B. more C. most D. much 8. A. tell B. told C. tells D. telling 9. A. who B. what C. when D. how 10. A. how B. that C. when D. where IV. Complete the second sentences so that it has a similar meaning to the first. 1. I usually stayed up late to watch football matches last year, but now I don’t. → I used 2. There were some trees in the field, but now there aren’t any. → There used 3. Anna doesn’t live with her parents any more. → Anna used 4. He is not a poor man any more, but he become a rich businessman. → He used 5. They didn’t often go to the cinema every Sunday last year. → They didn’t use

3.Would you mind ......................................the Window ? A .close B .to close C .closing D .closed 4.The Girls .......................................chess are Lan and Nga . A .playing B .played C.. to play D .plays 5.Would you mind If I ............................................? A .smoking B .smoked C .to smoke D .smokes 6 .Would you mind ................................your car ? A .moved B .moves C .to move D .moving 7 .I like Sweets ......................................from Viet Nam . A .making B .to make C .makes D .made 8.Do you mind If I ...........................? A .smoke B .smoking C .smoking D .to smoke 9 .Do you mind ................................. your pen ? A .given B .to give C .giving D .gave 10 .Would you ...........................If I turned on the tivi ? A .like B .want C .mind D .do

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