单项选择题

The question was so unexpected that, for a moment, Arthur was () a loss how to reply to it.

A. at      
B. in       
C. on      
D. of

<上一题 目录 下一题>
热门 试题

单项选择题
He left school()the age of sixteen.

A. in
B. at
C. by
D. from
单项选择题
--I can't see the blackboard very well.--Perhaps you need ()

A. examining your eyes
B. to be examined your eyes
C. to have examined your eyes
D. to have your eyes examined
相关试题