Since the road is wet, ________last night.
A.it must have rained
B.it must rain
C.it must be raining
D.it must have been raining.
正确答案是A
Since the road is wet, ________last night.
A.it must have rained
B.it must rain
C.it must be raining
D.it must have been raining.
正确答案是A