16.It must be he that has stolen Mr.Smith's purse,       ?(  )
A.hasn't heB.isn't heC.mustn't itD.isn't it

分析 一定是他偷了史密斯先生的錢包,不是嗎?

解答 答案D.
主句部分用must(may,might)+have+v-ed表示推測時,若句中沒有過去時間狀語,問句部分動詞用現(xiàn)在完成時形式.依照上面的分析就可能選A.但是本題考查的是強調(diào)句型的反義疑問句.本題中的"It must be…that…"是強調(diào)句的結(jié)構(gòu);強調(diào)句型的反意疑問句,后半部分的附加疑問句部分的主語和謂語以及時態(tài)要與強調(diào)句型本身保持一致,也就是使用"isn't it 或wasn't it"的形式.故答案選D.

點評 強調(diào)句型的反意疑問句,后半部分的附加疑問句部分的主語和謂語以及時態(tài)要與強調(diào)句型本身保持一致.
如:It was at eleven last night that I knew the good news,wasn't it?
It was where you come that you should return to,isn't it?

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