---Listen! Is Kate playing the piano in the room? ---No. It _________ be her. She has gone to London with her parents.
#74593
A
may not
B
can’t
C
mustn’t
D
needn’t
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She _________play a joke on him in case he becomes angry 
#63247
A
dares not
B
dares not to
C
dare not
D
not dare
——Must I come to see you again?——No, you _________.
#74904
A
mustn’t
B
can’t
C
may not
D
needn’t.
 I ____ have been there, but I ____ not find the time.
#62724
A
could; must
B
must; could
C
should; could
D
should; would