Our teacher is always busy preparing lessons until 11 o’clock at night, _____we students have gone

题目简介

Our teacher is always busy preparing lessons until 11 o’clock at night, _____we students have gone

题目详情

Our teacher is always busy preparing lessons until 11 o’clock at night, _____we students have gone to sleep.
A.that timeB.by which timeC.by that timeD.which time
题型:单选题难度:偏易来源:不详

答案

B
句意为“我们的老师总是忙着备课到晚上11点钟,那时我们已经睡了”。by意为“到……时(为止)”,which time 指代 “11 o’clock at night’。

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