单项选择题

In vain______ to get in touch with the authorities.

A．they tried
B．did they try
C．they have tried
D．the had tried
<上一题 目录 下一题>
热门 试题

单项选择题
A man's______ is best when he can forget himself and any reputation he may have required and can concentrate wholly on making the right decisions.
A．anticipation
B．acknowledgment
C．expectation
D．judgment
单项选择题
When people do not ______to an acceptable standard of behavior, they are bound to offend other people.
A．confirm
B．conform
C．confine
D．confound
相关试题