单项选择题

—I wonder why Mr. Green looks quiet in class.
—I'm not sure, but he（）a small accident driving here.

A. could have
B. might have
C. might have had
D. must have had

<上一题 目录 下一题>
热门 试题

单项选择题
With a lot of difficult problems（）,the manager felt worried all the time.

A. settled
B. to be settled
C. settling
D. to settle
单项选择题
The Red Cross would have another million dollars（）to buy medicine for the refugees in the Indian Ocean seaquake.

A.by that
B.with that
C.for which
D.with which
相关试题