—What do you think we can do for our aged parents?—You________do anything except to be with them and be yourself.
#62438
A
don't have to
B
oughtn't to
C
mustn't
D
can't
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—Please don’t tell anybody.—I     . I promise.
#62237
A
can't
B
don’t
C
won’t
D
mustn’t
----I missed the first part of the film. It was really a pity.----You _____home half an hour earlier.
#62877
A
should have left 
B
must have left
C
should leave   
D
must leave