Yesterday I had a hard day and it was already dark______I left the laboratory.A.by the tim

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Yesterday I had a hard day and it was already dark______I left the laboratory.

A.by the time

B.as soon as

C.immediately after

D.halfway through

请帮忙给出正确答案和分析,谢谢!

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答案解析

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  • 正确答案:A
    该句意为:昨天我累坏了,等我离开实验室时,天已经黑了。bythetime:截止到,等到……时(用于描写事情的发展阶段,并非必须使用完成时);assoonas:一……就……,相当于themoment;immediatelyafter:一……就……;halfwaythrough:(某种活动)进行了一半时,如halfwaythroughthematch(比赛进行了一半时),与midwaythrough同义。