—What do you think we can do for our aged parents?—You    do anything except that you visit them as often as possible. 
#89841
A
don’t have to
B
oughtn’t to
C
mustn’t
D
shouldn’t
推荐题目
It ____ last night, for the ground is wet now.
#88954
A
might not have rained
B
must have rained
C
couldn't have rained
D
rained
--The mistake_____, I had been more careful.---But you weren’t at that time.
#86594
A
might have avoided
B
would avoid
C
would be avoided
D
might have been avoided
I left very early last night, but I wish I _____ so early.
#89363
A
didn’t leave      
B
hadn’t left
C
haven’t left      
D
couldn’t leave