.--- He has to finish the experiment today. He must be in the lab,____?---That s
题型：不详难度：来源：
.--- He has to finish the experiment today. He must be in the lab,____?
---That s quite possible.| A．mustn"t he | B．won"t he | C．doesn"t he | D．isn"t he |
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答案
| .D |
解析
| 该题考查反意疑问句中尾句部分的助动词用法，must be结构中的中心词应为be，且He must be in the lab 相当于I think he is in the lab，故其尾句部分为isn"t he。 |
举一反三
You’ve switched the machine off. I told you not to,_____?| A．didn"t I | B．haven"t you | C．will you | D．did I |
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You must have waited here for a long time ,___________you?| A．mustn"t | B．didn"t | C．haven"t | D．hadn"t |
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What he lacks is more patience,___________? | A．isn"t it | B．is it | C．doesn"t he | D．does he |
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He must have attended the meeting yesterday,___________ he?| A．didn"t | B．mustn"t | C．needn"t | D．hasn"t |
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I told you that you shouldn"t waste your time playing the computer games,_____________?| A．didn"t I | B．did I | C．should you | D．shouldn"t you |
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