The headmaster demanded all the teachers ______ in the office.A．mustn’t smoke B
题型：不详难度：来源：
The headmaster demanded all the teachers ______ in the office.| A．mustn’t smoke | B．did smoke | | C．should smoke | D．not smoke |
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答案
| D |
解析
试题分析：考查虚拟语气：句意：校长要求所有的老师不要在办公室抽烟。根据句意排除BC，主句的谓语是demand，从句的谓语用虚拟语气，用should+动词原形，should可以省略，选D。 |
举一反三
He commanded that all the gates _____when it was getting dark in case thieves came in . | A．were shut | B．must be shut | C．could be shut | D．be shut |
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| A．changes | B．will be changed | C．be changed | D．be changing |
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They demanded that the books________ to the school library at once. | A．return | B．should return | C．be returned | D．would be returned |
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—Sorry, sir. I can’t answer this question.
---Well, you are supposed______ this part of history.| A．reading | B．to be reading | C．to have read | D．having read |
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--- I saw your uncle take a taxi to the airport. Why didn’t you drive him there?
--- I ______. But my car ______.| A．would; was fixed | B．would have; was fixed | | C．would have; was being fixed | D．did; was being fixed |
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