单项选择题

—The ground is wet.
—It must have rained last night, ______.

A. hasn't it
B. didn't it
C. mustn't it
D. isn't it
<上一题 目录 下一题>
热门 试题

单项选择题
The problem won't be settled until we ______ a chance to discuss it thoroughly.
A. have had
B. will have
C. will have had
D. would have
单项选择题
The engineer ______ my father works is about 50 years old.
A. to whom
B. on whom
C. with which
D. with whom
相关试题