She knows a lot about the film. She must have seen it before, ______ ?must she
题型：不详难度：来源：
She knows a lot about the film. She must have seen it before, ______ ?
must she B. mustn’t she C. has she D. hasn’t she |
答案
| D |
解析
| 考查反义疑问句.对已发生的过去情况的推测，若陈述句谓语部分有“must have done”，而且有表示过去的时间状语，问句部分用didn’t；若没有表示过去的时间状语，问句部分用haven’t或hasn’t,she为第三人称单数,故选D. |
举一反三
This is the first time that your parents have been abroad, ______?| A．haven’t they | B．hasn’t it | C．aren’t they | D．isn’t it |
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When you are dressed in the latest style, dancing to the most fashionable music after watching the latest film, you feel great,______?| A．aren’t you | B．don’t you | C．do you | D．are you |
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---John and Tom, you two clean the classroom today, _____?
---But we cleaned it yesterday.| A．do you | B．will you | C．didn’t you | D．don’t you |
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I don’t think you have made great mistakes, _______?| A．do you | B．don’t you | C．have you | D．haven’t you |
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