—_______ do you clean your room?— Every day.
#77537
A
How long
B
How many
C
How often
D
How soon
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--Whose tennis racket is this, Linda?--Look! Jerry's name is on it! It _________ be his.
#76407
A
may
B
must
C
can't
D
mustn't
The police still haven’t found the lost child, but they’re doing all they .
#63627
A
can
B
may
C
must
D
should
The lady ________ have done something wrong, because she is looking guilty.
#62364
A
would
B
should
C
can
D
must
Today is Wednesday. He _____ be at home. He _____ be at school.
#76066
A
can't; can
B
can't; must
C
mustn't; must
D
mustn't; can
—Jim，you said you'd lend me your MP5.—I'm sorry I forgot my promise but you ________ have it next Saturday.
#62478
A
must
B
may
C
need
D
shall