单项选择题

I have never heard or seen such a thing______

A．did I
B．haven't I
C．do I
D．have I
<上一题 目录 下一题>
热门 试题

单项选择题
Prices at present are reasonably stable, and will probably remain
A．so
B．such
C．high
D．low
单项选择题
It is necessary that a student______his lesson before coming to class.
A．will prepare
B．prepares
C．must prepare
D．prepare
相关试题