He       you more help,even though he was very busy.
#89660
A
might have given
B
may give
C
must have given
D
might give
推荐题目
The light is out in her room. She ___ to bed.
#88959
A
can’t go
B
can’t have gone
C
must have gone
D
has gone
You must be a student, ________you? 
#89865
A
wasn’t
B
are
C
mustn’t
D
aren’t
—You didn’t wait for Mr. Black last night, did you?  —No, but we ____. He didn’t return home at all. 
#89202
A
couldn’t have
B
needn’t have
C
didn’t need to
D
should wait have