--- Will Helen come to my party tonight?--- I am not sure. She _______ go to the cinema with her father.
#63478
A
shall
B
can
C
must
D
may
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I want to open the door, but it _____ open.
#62889
A
couldn’t
B
won’t
C
wouldn’t
D
mustn’t
(2013·青岛二模)John ________ yet, or he would have telephoned me.
#62411
A
mustn't have arrived
B
shouldn't have arrived
C
needn't have arrived
D
can't have arrived