单项选择题

Why hasn't he come ______on time, we will have to put off the trip.

A．If he doesn't come
B．If he won't come
C．If he shouldn't come
D．If he hadn't come
<上一题 目录 下一题>
热门 试题

单项选择题
Mary ______ in bed all day because she had a fever.
A．lay
B．has laid
C．has lain
D．laid
单项选择题
I should ______ him up to tell him the information.
A．call
B．calling
C．called
D．have called
相关试题