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Cho tam giác ABC vuông tại A có BC=5cm đường cao AH=12/5cm. Tính BH,CH
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I. Choose the best answer and circle the letter a, b, c or d of your choice. (20 pts) 1. It’s the most interesting book, I……………………. a. have ever seen b. ever saw c. has ever read d. am reading 2. Mary has got ____________. a. a oval face b. an oval face c. a face oval d. oval face 3. Mary doesn’t______________any sisters. a. have b. has got c. have got d. had 4. Can you___________any sports? a. to play b. playing c. play d. to playing 5. Peter doesn’t ______________at the weekends. a. wants to work b. want working c. want to work d. want work 6. She prefers cooking______________the dishes. a. to wash b. than washing c. to washing d. than wash 7. Hanoi is ___________ capital of Vietnam. a. a b. the c. an d. one 8. There isn’t ___________ food for dinner. a. some b. many c. any d. a 9. Her birthday is____________ July the seventh. a. to b. in c. at d. on 10. _________ students are there in the class? a. How many b. How long c. How much d. How 11. It’s _____________ big house. a. a quite b. quiet a c. quite a d. quite 12. Mary ________ ride a bike when he ________7 years old. a. can/ was b. could/ was c. can/ is d. could/ is 13. I ____________to the concert last night. a. was go b. did go c. went d. go 14. There was a noise behind me, so I looked ________. a. round b. back c. over d. at 15. It took me an hour ____________ the door. a. painting b. to paint c. to painting d. paints 16. Which underlined letter is pronounced as / s /? a. drivers b. boxes c. girls d. maps 17. At the Science Museum we looked ___________ a telescope at the sky. a. up b. down c. into d. through 18. The cat bit_______________on the hand a. hers b. she c. her d. herself 19. The Rex hotel is the……………………..in the city. a. expensiver b. expensive c. more expensive d. most expensive 20. The train_____________ London____________ Manchester leaves at 10 a.m. a. to/ from b. from/ to c. to/ in d. at/ to

21. We’d just informed that Nick __________ the new Managing Director. * A. was to be B. was being C. is going to be D. will be 22. I wasn’t sure how Jane would react because I________ her long. * A. didn’t know B. wasn’t knowing C. hadn’t been knowing D. hadn’t known 23. The crops ______ on the weather. * A. depend heavy B. depend heavily C. affect heavy D. affect heavily 24. Don’t you _________that Jane and Peter are still together? * A. incredibly find B. find it incredible C. find incredibly D. find incredible 25. Peter doesn’t talk much in public. He’s rather __________. * A. kind B. sociable C. humorous D. reserved 26. _________a scholarship, I entered the frightening and unknown territory of doctoral studies. * A. Having been awarded B. To be awarded C. Having awarded D. To award 27. It’s important that we ________ as soon as there’s any change in the conference agenda. * A. being notified B. be notified C. were notified D. be it notified 28. You must not let children play in the street because it is _________. * A. suitable B. safe C. dangerous D. careful 29. How much would you ________ for repairing my watch? * A. charge B. cost C. spend D. demand 30. I am sorry that I can’t ________ your invitation. * A. take B. except C. agree D. accept 31. Science has made great ________ during the past 30 years. * A. motions B. advances C. advantages D. opportunities 32. You come for just a little while. You don’t want to stay. You visit someone informally. You only _____. * A. drop by B. put off C. come in D. give away 33. When you do this, you choose a person from a group. You do this to people to make a team. What are you doing? * A. Separating B. Training C. Picking D. Throwing 34. His ________ had always been to become an architect. * A.study B. direction C. imagination D. ambition 35. He is ________ a very old man but in fact he is only fifty. * A. apparently B. evidently C. obviously D. actually

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