( )is difficult to get there before 8:00 o`clock.A.She B.It C.This D.That
问题描述:
( )is difficult to get there before 8:00 o`clock.A.She B.It C.This D.That
答
答案:B
IT在句子中做形式主语
答
B
It is 引导的表语从句
答
B
这个是形式主语.
答
B