—  My cat’s really fat.— You ______ have given her so much food.
#63003
A
wouldn’t
B
couldn’t
C
shouldn’t
D
mustn’t
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----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
Today, we _____ work as hard as people did in the past.
#76507
A
mustn’t
B
can’t
C
shouldn’t
D
don’t have to