1.It isn’t quite _____ ______ he will be present at the meeting.

题目

1.It isn’t quite _____ ______ he will be present at the meeting.
A.sure; whether
B.sure; if
C.certain; whether
D.certain; that
C 为什么ABD不可以选?
15.He treated all the people around him,______he knew or he didn't know,______.
A.if,friendly
B.whether,friendly?
C.if,in a friendly way
D.whether,in a friendly way
D 一样的疑惑,为什么其他不可以选?

答案

1. C翻译：他是否会出席明天的会议还不是那么确定.解释：从句意not可以看出,从句有“是否”之意,排除D；it是形式主语,后面的从句才是真正的主语.而作主语从句的“是否”是不能用if,只能用whether的,排除B；此句型“i...