—Jenny，how did your math exam go?—I thought I ________，but in fact I came in the top 10% in the class.
#63590
A
might have failed
B
couldn’t have failed
C
should have failed
D
mustn’t have failed
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---Whose is the pencil box?---It _____ be Tom’s. Look at his name on the cover!
#76628
A
can
B
may
C
must
D
need
Generally my father is a mild man, but when he gets angry, he ______ be fierce.
#62859
A
can
B
should
C
must
D
shall
-How is your new babysitter? --We _________ ask for a better one. All our kids love her so much.
#63572
A
couldn’t
B
might
C
mustn’t
D
should