单项选择题

Tony ______ yesterday if he were really serious about his work.

A．ought to come
B．should come
C．must have come
D．should have come
<上一题 目录 下一题>
热门 试题

单项选择题
Sam did nothing else than ______ when he saw the old lady fell down on the ground.
A．stand by
B．standing by
C．stood by
D．stood up
单项选择题
Many a plan ______ to fight against pollution.
A．have been worked out
B．have been worked on
C．has been worked out
D．has been worked on
相关试题