—The research on the new flu virus vaccine is challenging and demanding. Who do you think can do the job? —_______ my students have a try?
#62928
A
May
B
Must
C
Shall
D
Will
推荐题目
–Dad, _____ we wait until the light becomes green?--Yes, we ______ . That’s the traffic rule.
#74289
A
need, can
B
shall, must
C
must, have to
D
can, need
---I was told to be here at this time.---Sorry, you ___________. I forgot to tell you we've changed the plan.
#76828
A
must
B
may
C
can't
D
needn't
— I didn’t care about what other people thought about me.— Well, you ________.
#62736
A
should
B
ought to have
C
would have
D
could