--____ you come to my birthday party tomorrow, Robert? --I’m afraid not. I have to study for my exam.
#78338
A
Must
B
Should
C
Can
D
Need
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Boys, you ______ be sitting in this room. It is for your teachers only.
#76759
A
shouldn’t
B
don’t have to
C
won’t
D
needn’t
—Catherine,  I have cleaned the room for you.—Thanks. You_______ it.  I could manage it myself.
#62965
A
needn’t do
B
needn’t have done
C
mustn’t do
D
shouldn’t have done