-- May I go out now. Dad? -- No. You __    let your mother know first.
#78123
A
can
B
may
C
need
D
must
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You _________ get up so early. It’s weekend today.
#75626
A
mustn’t
B
can’t
C
needn’t
D
oughtn’t
 “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.