.--- Where is your father? --- I'm not sure. He_______ in the office.
#75019
A
must be
B
maybe
C
may be
D
perhaps
推荐题目
---Why hasn’t Jane arrived yet? ---She ______ again in the morning.
#62660
A
shouldn’t have overslept
B
may have turned off the alarm clock
C
must have no one to call her
D
should have someone to wake her up
---The work will take me another week. I’m really tired.---I think you as well consult an experienced worker.
#62814
A
may
B
can
C
need
D
must
Lisa is going to clean her _______ room when she _________ back from school next weekend.
#77126
A
living; is coming
B
living; comes
C
live; come
D
lives; is going to come
--- ________ have you kept the book ? --- Since last Month. I ________ return it to the library today or I can’t borrow one next time.
#74561
A
How often; must
B
How long; have to
C
How soon; have to
D
When; must
-- Whose French book is it?-- It __________ be Lucy’s. Look! Her name is on the book!
#74121
A
must
B
mustn’t
C
might
D
can’t