题目内容
Having checked the doors were closed, and ________ all the lights were off, the
boy opened the door to his bedroom.
A.why B.that C.when D.where
B
【解析】B [连接词that引导第二个宾语从句,不具有任何意义,但一般不能省略。]
练习册系列答案
相关题目
题目内容
Having checked the doors were closed, and ________ all the lights were off, the
boy opened the door to his bedroom.
A.why B.that C.when D.where
B
【解析】B [连接词that引导第二个宾语从句,不具有任何意义,但一般不能省略。]