---Look! The clouds are gathering. ---Yes. I’m afraid it    be pouring down soon.
#88221
A
can
B
must
C
should
D
might
推荐题目
Tony ____ the invitation, otherwise he would have attended your birthday party. 
#86508
A
couldn’t have received
B
mustn’t have received
C
needn’t have received
D
shouldn’t have received
I____ asleep because it took me a long time to realize that the telephone was ringing.
#88031
A
could have fallen
B
should have fallen
C
must have fallen
D
mustn’t have fallen