问题
选择题
The streets are all wet.It ___ during the night.
A.must be raining
B.must have been rain
C.had to rain
D.must have rained
答案
答案:D
The streets are all wet.It ___ during the night.
A.must be raining
B.must have been rain
C.had to rain
D.must have rained
答案:D