—Can I go to the park, Mum?—Certainly. But you ______ be back by six o’clock.
#76284
A
can
B
may
C
might
D
must
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There's enough time for you to go to the airport.You hurry now.
#75817
A
should
B
needn't
C
must
D
can't
--Will you read me a story, Mummy?--OK. You ________have one if you go to bed as soon as possible.
#63116
A
might
B
must
C
shall
D
could
The weather turned out to be fine yesterday．I the trouble to carry my umbrella with me．
#63079
A
should have taken
B
could have taken
C
needn’t have taken
D
mustn’t have taken
—May I take photos in the museum? —No, you . You obey the rules here.
#74471
A
may not; can
B
mustn’t; may
C
can’t; can
D
mustn’t; must