--____ 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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— Catherine, I have cleaned the room for you . — Thanks. You_______. I could manage it myself.
#63169
A
needn’t do
B
needn’t have done
C
mustn’t do
D
shouldn’t have done
You had better ________some food and drinks before the field trip ________.
#75967
A
to bring; starts
B
bring; starts
C
bringing; started
D
bring; started
You _______ call him if you want to, but you _______, for he’ll surely come here soon. 
#62741
A
may; mustn’t
B
can; needn’t
C
have to; needn’t
D
can; doesn’t need