单项选择题

You won' t be able to catch the train ______ you start right now.

A．if
B．so that
C．if not
D．unless
<上一题 目录 下一题>
热门 试题

单项选择题
Xiao Ming, together with his parents, ______ to Beijing twice.
A．have been
B．has been
C．have gone
D．has gone
单项选择题
I know some of them, but I don't know of them.
A．all
B．few
C．some
D．any
相关试题