I haven"t finished my composition. I _____ for two hours and a half.A. have writ
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I haven"t finished my composition. I _____ for two hours and a half. |
A. have written it B. have been writing it C. wrote it D. am writing it |
答案
举一反三
— I"m sure Andrew will achieve high grades in the final. — I think so. He _____ hard for it in the past two weeks. |
A. is working B. was working C. had been working D. has been working |
She ought to stop work; she has a headache because she _____ all day long. |
A. has been reading B. had read C. is reading D. read |
He went to Beijing in 1990 and _____ there ever since. |
A. is working B. has been working C. works D. worked |
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 |
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