Look! the ground is wet. It must have rained last night, _______?A．hasn’t itB．di
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Look! the ground is wet. It must have rained last night, _______?| A．hasn’t it | B．didn’t it | C．mustn’t it | D．hadn’t it |
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答案
| B |
解析
| 考查反义疑问句。对于情态动词+have+done的反义疑问句有两种情况，1. 情态动词+have+done后面没有过去式 的时间状语，就对现在完成时提问。2. 情态动词+have+done后面有过去时的时间状语，就对过去时反问。本题must have rained后面有过去时的时间状语，所以就对过去时反问，答案为B。 |
举一反三
I don’t think a warm winter always has a negative influence on our life, _______?| A．do I | B．does it | C．hasn’t it | D．don’t I |
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When the accident happened, your brother escaped being hurt, _______?| A．didn’t he | B．did he | | C．didn’t it | D．did it |
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—I couldn’t get through to you at home last night. You must have gone out then, ________?
— Yes, I went to the cinema.| A．mustn’t you | B．haven’t you | C．can’t you | D．didn’t you |
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Paul’s wish is to become a pilot, ____?| A．isn’t he | B．isn’t it | C．is he | D．is it |
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—Jack, you water the flower today, ___?
— But, dad, I watered it yesterday.| A．do you | B．will you | C．didn’t you | D．don’t you |
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