–Whose shirt is this?--It _______ be Li Lei’s. It is too big for him.
#78243
A
could
B
must
C
can’t
D
might
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---Excuse me, may I take the magazine away? ---No, you ______. You ______ only read it here.
#77395
A
mustn’t; can
B
mustn’t; need
C
may not; need
D
needn’t; can
 “Not having returned home yet, _________”, his father said to the police.
#63543
A
his mother got worried
B
his mother must be worried
C
I think he is missing
D
he must have got into some trouble.