单项选择题

In vain ______ to get in touch with the Embassy.

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

单项选择题
Being somewhat short-sighted, she had the habit of ______ at people.
A．glancing
B．peering
C．gazing
D．scanning
单项选择题
You may borrow as many books as you like, provided you show them to ______ is at the desk.
A．whoever
B．who
C．whom
D．that
相关试题