–Where are the students? How could they keep us waiting for so long? –They started an hour ago and they ____ be here in fifteen minutes, I think.
#87940
A
can
B
would
C
should
D
must
推荐题目
After hours of repair,the driver tried to start the car but it _______ work.
#89801
A
won.t
B
shouldn’t
C
wouldn.t
D
couldn’t
---Your sister nearly _______ all her spare time to her study during the three years. ----That's right， or she ________ the first place in her school in the College Entrance Examination.
#90534
A
devoted; wouldn't have taken
B
spent; wouldn't have taken
C
had devoted; hadn't taken
D
had spent; couldn't take
—I think I'll give Bob a ring.—You ______. You haven't been in touch with him for ages.
#89842
A
will
B
may
C
have to
D
should
. I ____ to the top of the tree, but I fell off it and hurt my leg.
#88189
A
must have climbed
B
was able to climb
C
could have climbed
D
should have climbed