单项选择题

Mike looks so sleepy in the class; he ______ up last night.

A. must stay
B. should have stayedC. must have stayed D. is sure to stay
<上一题 目录 下一题>
热门 试题

单项选择题
They stood still on the top of a mound, gazing out over the endless______of the grassland.
A. space
B. expanse
C. stretch
D. land
单项选择题
Unless ______ by credit card, please pay in cash.
A. pay
B. is paid
C. paying
D. paid
相关试题