—The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job?—____ my students have a try?
#89494
A
Shall
B
Will
C
Could
D
Should
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--Listen! Someone is knocking at the door.-- ______ be Mary. She has just been to Beijing
#89781
A
She mustn’t
B
It can’t
C
It must
D
She may
One thing’s for sure, the fire _____by some cigarette butts.
#88084
A
might cause
B
could have caused
C
must have been caused
D
should be caused
I lived with my sister this summer and didn’t have to pay rent. So I _____ save most of my salary.
#90059
A
could
B
would
C
was able to
D
should
It seems the benefits are so obvious that we hope you support our side’s point of view.
#88065
A
will can
B
need to
C
will be able to
D
may
Flowers suddenly burst out everywhere on the same day every spring, as if they in tune with one another.
#86920
A
are
B
were
C
have been
D
are to be