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【单项选择】 1. — _ will the meeting last? — _ they make a decision. A. How long; Not until B. When; Not until C.How long;Until D.When; Until 2. —When will you move into the new house? —Not until the workers _ all the lights. A. put on B. put on C.put out D.put out 3. —Another three Chinese astronauts have arrived in Tiangong space station. When will they come back? —Not until their task _ in six months. A. finishes B.will finish C. will be finished D. is finished 4. —How do you find your online tour to the Nanjing Museum? —Fantastic! I think it’s _ I have ever had. A. an amazing experience B. a more boring experience B. the most amazing experience D. the most boring experience 5. —He’s told to join School Math competition, _? —_.He is preparing for it. A. does he; No. he doesn’t B.hasn’t he; Yes, he has B. isn’t he;No, he isn’t D. isn’t he;Yes, he is 6. —Gwen, have you seen your father recently? —No, he _ works in the hospital because of COVID-19. A. simply B. mostly C. properly D. closely 7. Each of them_a new zoo in the city. They think animals should be in the forest. A. against building B. is against to build B. are against building D. is against building 8. —He dislikes South Korea operas,_?. —_.He thinks it is a waste of time. A. doesn't he Yes, he does B. does he; Yes, he does C.doesn't he No, he doesn’t D. does he; No, he doesn’t 9. The visitors are very _ to see so many changes_. A. surprised;are taken place B. surprising; take place C. surprised;take place D. surprising; are taken place 10. He’s already been back from Australia_?-_.He is on a visit to Shanghai. A. isn't he; No B. hasn't he; Yes C. isn't he; Yes D. hasn't he; No 11. This exercise is_ difficult _. A. so; that few of us can do B. so; that many of us can do C. too;for any one of us to do D. too;for any one of us to do it 12. —Do you think the question too hard _? —I don't think so.He can answer it easily. A. of Jim to answer B. of Jim to answer it C. for Jim to answer D. for Jim to answer it 13. —