Question

1As we all know, it’s not polite to keep others _________ for a long time.

A. wait            B. waited         C. to wait         D. waiting

 

Answer 1

【答案】

D

【解析】這里考核keep doing sth和keep sb doing sth結(jié)構(gòu)。

注意：others這里是“別人”的意思。