---Whose is the pencil box?---It _____ be Tom’s. Look at his name on the cover!
#76628
A
can
B
may
C
must
D
need
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Thomas, please don’t shout loudly. The others _________ hear very well.  
#76352
A
can’t
B
mustn’t
C
shouldn’t
D
needn’t
You_____ all those calculations! We have a computer to do that sort of thing.
#63501
A
needn’t have done
B
must not have done
C
shouldn’t have done
D
can not have done
Jenny doesn’t agree with her father, but she ________ that to his face.
#63121
A
dare not to say
B
doesn’t dare to say
C
dares not say
D
dare not saying