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Nêu định nghĩa, kí hiệu và ví dụ các tập hợp số đã học ở lớp 6 và 7 như tập hợp số tự nhiên, hữu tỉ, vô tỉ, số thực....
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giúp mk nha,khoanh và ghi công thức trong câu nữa nha !! I. Choose the best answer to complete each of the following sentences 1. His neighbours sometimes wondered he did for a living. A. why B. when C. where D. what 2. Could you please tell me ? A. It is how far to the nearest bus stop B. how far is it to the nearest bus stop C. how far to the nearest bus stop is it D. how far it is to the nearest bus stop 3. Marigold wondered Kevin and Ruth would be at the party. A. that B. whether C. if D. B & C 4. He asked me “ ?” A. How long you have studied English. B. How long had you studied English C. How long you had study English D. How long you had studied English 5. While many teachers spend some class time teaching skills, students often need more social skills. A. study B. studied C. study’s D. studies 6. I am not sure I can solve this problem. A. how B. what C. who D. by whom 7. She asked me the seat or not. A. if – had occupied C. whether – was occupied C. if– has been occupied D. whether – occupied 8. By the age of 15, teenagers are better able to a more demanding curriculum. A. solve B. operate C. handle D. deal 9. My parents asked me to find out it gave you so much trouble. A. what B. which C. why D. where 10. The policeman asked us . A. had any of us seen the accident happen B. if had any of us seen the accident happen C. whether any of us had seen the accident happen D. that if any of us had seen the accident happen 11. Tom told us that sometimes he had difficulty his feelings. A. expressing B. communicating C. sending D. talking 12. My teacher told me that I attend the math course for the higher level programme that I for. A. can’t – apply B. couldn’t – apply C. can’t – applied D. couldn’t – had applied 13. I asked him but he said nothing. A. what the matter was B. what was the matter C. the matter was what D. what’s the matter was 14. My closest friend is not very and she likes having a small friend group but I like talking with a lot of people and hanging out. A. society B. sociable C. social D. socialist 15. Mi asked what information she that assignment. A. needs to be done B. needed doing C. need to do D. needed to do 16. James him up when the bus reached the square. A. told me wake B. asked me to wake C. said me to wake D. requested me waking 17. Ann was raised very on her parents, and she was that she wouldn’t live on her own afterwards. A. dependent - worry B. dependent – worried C. independent - worry D. independent - worried 18. Susan needs someone to show her how to her anxiety and depression. A. empathise B. try C. succeed D. manage 19. I wonder we’ll catch the bus we’ll take a taxi. A. if - and whether B. whether - or that C. if - or that D. whether - or whether 20. The advice columnist said, “It sounds like the problem is not your appearance but the you see yourself.” A. route B. distance C. way D. behavior 21. The passenger asked we landed. A. what B. when C. if D. why 22. He asked me what . A. time was it B. time is it C. time it was D. none is correct. 23. He told me to rest for a while. “ for a while”, he said. A. To rest B. Rest C. Do you rest D. Resting 24. He asked “Why did she take my pen?” - He asked why . A. she took his pen B. did she take his pen C. she had taken his pen D. she has taken his pen 25. Taking good notes students to evaluate, organize and summarize information. A. requests B. requires C. allows D. offers 26. Excuse me. Could you tell me ? A. what time is it B. what is the time C. what time it is D. it is what time 27. I suffer from depression and anxiety, but I don’t know to get over my problems. A. what B. how C. where D. which 28. As children move toward , they are less likely to ask for advice. A. dependent B. dependence C. independent D. independence 29. We wonder from his office after that scandal A. why did he not resign B. why he did not resign C. why he not resign D. why didn’t he resign 30. Miss Hoa said that unsuccessful test takers didn’t know the questions came from. A. when B. where C. what D. why

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