【题目】It suddenly occurred to him he had left his keys in the office.
A.whether B.where C.which D.that
在线课程【答案】D
【解析】it作形式主语,真正的主语为that he had left his keys in the office。且that在句中无意义,并不充当任何成分。
编辑:chaxungu时间:2026-04-27 02:52:42分类:高中英语题库
【题目】It suddenly occurred to him he had left his keys in the office.
A.whether B.where C.which D.that
在线课程【答案】D
【解析】it作形式主语,真正的主语为that he had left his keys in the office。且that在句中无意义,并不充当任何成分。