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        1. 【題目】They must have stayed at home last night,________?

          A. mustn’t theyB. haven’t theyC. didn’t theyD. must they

          【答案】C

          【解析】

          考查反意疑問(wèn)句。句意:他們昨晚一定是呆在家里了,是嗎?本句中must have done表示對(duì)過(guò)去的情況進(jìn)行推測(cè)(一般句中有明確的過(guò)去時(shí)間狀語(yǔ)),反意疑問(wèn)句要根據(jù)陳述部分謂語(yǔ)的情況用“didn't+主語(yǔ)”或“wasn't/weren't+主語(yǔ)”。故選C。

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