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
<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
I've made ______ more mistakes than you have.
A．a lot
B．many
C．very
D．a lot of
相关试题