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Ánh sáng, nhiệt độ, độ ẩm có ảnh hưởng như thế nào đến đời sống của sinh vật? Lấy ví dụ về các nhóm sinh vật chịu ảnh hưởng của các nhân tố sinh thái trên. (Ví dụ: nhóm động vật ưa sáng: bò, chuồn chuồn, nai, chim sẻ,...)
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1.Choose the correct answer. 1. He was writing to his friend when he __________a noise. A. was hearing B. heard C. had heard D. hears 2. I __________many people since I came here in June. A. met B. has met C. was meeting D. have met 3. We __________ maths at this time last week. A. were learning B. are learning C. was learning D. learnt 4. She was playing games while he __________a football match. A. watched B. watches C. was watching D. watching 5. She __________to Ho Chi Minh city last year. A. goes B. has gone C. go D. went 6. Since we came here, we ______ a lot of acquaintances. A. have had B. had C. have D. are having 7. __________he playing football now? A. Will B. Does C. Was D. Is 8. Every morning, I often sit in my garden and____ to my nightingale sing. A. listening B. listen C. listened D. listens 9. She __________school when she was six. A. start B. started C. has started D. are starting 10. I.__________TV when the telephone rang. A. watched B. was watching C. are watching D.have watched 11. I will contact you as soon as I ___________the information. A. will get B. get C. got D. had got 12. If he's late again, I_____ very angry. A. am going to be B. will be C. would be D. am 13. A: “The phone is ringing” B. “ I ______it”. A. answer B. will answer C. have answered D. will be answering 14. Yesterday, I _______ for work late because I _______ to set my alarm. A. had left / forgot B. was leaving / was forgetting C. left / had forgot D. had been leaving / would forget 15. By the time we ____ to the train station, Susan _____ for us for more than two hours. A. will get / has been waiting B. got / was waiting C. got / had been waiting D. get / will wait 16. While her brother was in the army, Sarah ___________ to him twice a week. A. was writing B. wrote C. has written D. had written 17. The Titanic _______ the Atlantic when it _______ an iceberg. A. was crossing / struck B. had crossed / was striking C. crossed / had struck D. is crossing / strikes 18. In the 19th century, it _______ two or three months to cross North America by covered wagon. A. took B. had taken C. had taken D. was taking 19. Last night at this time, they _______ the same thing. She ______ and he _________ the Newspaper. A. are not doing / is cooking / is reading B. were not doing / was cooking / was reading C. was not doing / has cooked / is reading D. had not done / was cooking /read 20. After he ____________ his English course, he went to England to continue his study. A. finish B. finishes C. finished D. had finished 21. It’s a long time since we last went to the cinema. A. We have been to the cinema for a long time. B. We haven’t been to the cinema for a long time. C. We don’t go to the cinema as we used to. D. We wish we went to the cinema now. 22. The last time I saw Rose was three years ago. A. I didn’t see Rose for three years. B. I haven’t seen Rose three years ago. C. I haven’t seen Rose since three years. D. I haven’t seen Rose for three years. 23. I haven't visited the museum for three months. A. It is three months since I have visited the museum. B. I didn't visit the museum three months ago. C. The last time I had visited the museum was three months ago. D. It is three months since I visited the museum. 24. "John began playing the piano 10 years ago" A. John played the piano 10 years ago. B. John has played the piano for 10 years. C. John used to play the piano 10 years ago. D. John doesn't play the piano anymore 25. The last time I saw her was a week ago. A. I haven't seen her for a week. B. I haven't seen her since a week. C. I have seen her for a week. D. I have seen her since a week.

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