On rainy days, accidents ______ happen sometimes on steep roads．
#63545
A
should
B
shall
C
must
D
can
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— Mum, my friends are waiting for me outside. May I go out to play with them?— Yes, you , but be careful, please.
#75783
A
shall
B
must
C
may
D
should
The weather turned out to be fine yesterday. I ______ the trouble to carry my umbrella with me.
#62852
A
should have taken
B
could have taken
C
needn’t have taken
D
mustn’t have taken
---Is that Lucy’s sister, Lily?---No, it _______ be her. She has gone to English.
#75840
A
could
B
can
C
can’t
D
mustn’t
－Look, your sister is playing the piano over there.－She ______ be my sister. She has gone to America.
#77768
A
mustn’t
B
can’t
C
shouldn’t
D
may not
---May we leave the classroom now?---No, you . You to leave until the bell rings.
#75743
A
mustn’t, are allowed
B
don’t have to, are supposed
C
needn’t, aren’t allowed
D
can’t, aren’t supposed