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

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

题型:不详难度:来源:
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

答案
B
解析
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’。
举一反三
The river, _______the bank are covered with trees, is very long.
A.whoseB.whichC.of whichD.which of

题型:不详难度:| 查看答案
We haven’t settled the question of __________it is necessary for him to study abroad.
A.ifB.where
C.whetherD.that

题型:不详难度:| 查看答案
— Could you do me a favour?
— It depends on __________ it is.
A.whichB.whichever
C.whatD.whatever

题型:不详难度:| 查看答案
—It’s thirty years since we last met.
—But I still remember the story, believe it or not, __________ we got lost on a rainy night.
A.whichB.that
C.whatD.when

题型:不详难度:| 查看答案
Nobody believed his reason for being absent from class__________he had to meet his uncle at the airport.
A.whyB.that  
C.whereD.because

题型:不详难度:| 查看答案
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