My sister ______ go to bed _______ my mother came back last night.A.not untilB.doesn't; until C

题目简介

My sister ______ go to bed _______ my mother came back last night.A.not untilB.doesn't; until C

题目详情

My sister ______ go to bed _______ my mother came back last night.
A.not untilB.doesn't; until C.didn't; untilD.aren't; until
题型:单选题难度:中档来源:不详

答案

C

试题分析:句意:我妹妹昨晚知道我妈妈回来才上床睡觉。固定短语not…until…直到……才……,last night昨晚,是一般过去时态,所以此句借助助动词did,故选C。

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