He went to Beijing in 1990 and _____ there ever since.A. is workingB. has been w
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He went to Beijing in 1990 and _____ there ever since. |
A. is working B. has been working C. works D. worked |
答案
举一反三
Over the past decades, sea ice _____ in the Arctic as a result of global warming. |
A. had decreased B. decreased C. has been decreasing D. is decreasing |
— I have got a pain in my back. — No wonder. You _____ in front of the computer too long. |
A. have worked B. are working C. have been working D. worked |
一 I"m sure Andrew will win the first prize in the final. 一 I think so. He _____ for it for months. |
A. is preparing B. was preparing C. has been preparing D. had been preparing |
— Why do you want to work for our company? — This is the job that I _____ for. |
[ ] |
A. looked B. am to look C. had looked D. have been looking |
We _____ on this project for four hours. Let"s have a rest. |
A. are working B. have been working C. worked D. had worked |
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