—Did Ann fail in English?—She ____. Don't you notice that she looks depressed?
#62213
A
might
B
must
C
may have
D
could have
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—Must I water the flowers now?  —No, you ________ . You __________ do it later.
#74201
A
mustn’t, must
B
mustn’t, may
C
needn’t, may
D
needn’t, must
It isn’t going to rain, so you        take an umbrella with you.
#75747
A
mustn’t
B
shouldn’t
C
needn’t
D
can’t
Alex changed his mind at the last minute,otherwise we ________ an agreement.
#62310
A
should have reached
B
could have reached
C
can reach
D
should reach