--- ________ 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
推荐题目
The train is to start soon and Mary hasn’t turned up． What _____ have happened to her?
#63249
A
can
B
might
C
may
D
should
It has been announced that candidates remain in their seats until all the papers have been collected.
#63016
A
shall
B
can
C
should
D
must
One of our rules is that every student_____wear the school uniform while at school．
#63218
A
might
B
could
C
shall
D
will
Days later, my brother called to say he was all right, but ________ say where he was.
#62801
A
mustn’t
B
shouldn’t
C
wouldn’t
D
mightn’t