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题目
题型:不详难度:来源:
Having checked the doors were closed and ______ all the lights were off, the boy opened the door to his bedroom.
A.whyB.thatC.whenD.where

答案
B
解析

试题分析:句意:已经检查完门是关着的,所有的灯都灭了,这个男孩打开了他的卧室的门。这里逗号后是一个句子,逗号前是非谓语动词的形式,and连接的是Having checked的两个宾语,宾语从句不缺成分故用that,故选B。
点评:本题难度适中。这里考查的宾语从句的连词,that在宾语从句中不做成分,一般可省略,但是当有两个从句并列时,后面的从句的连词that不能省略。
即学即练:Did he point out ______ you were wrong?
A. why     B. that      C. when      D. where
解析:D。句意:他有没有指出你什么地方错了?
核心考点
试题【Having checked the doors were closed and ______ all the lights were off, the boy】;主要考察你对连词等知识点的理解。[详细]
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