赞题库-背景图
单项选择题

The meeting is postponed until next week, ______ we won't be so busy.

A．since
B．when
C．while
D．that
<上一题 目录 下一题>
热门试题

单项选择题But for your help, I ______ my work yesterday.

A．can't finish
B．wasn't able to finish
C．couldn't finish
D．couldn't have finished

单项选择题After I ______ for half an hour, I realized that he was not coming.

A．have waited
B．waited
C．had been waiting
D．was waiting