A hard-working man become a great scientist, but a great scientist be a hard-working man.
#74334
A
can’t; can
B
may not; can
C
can’t; must
D
may not; must
推荐题目
--- Another cup of coffee? ---No. thanks. I _____ be off. Marry is waiting for me.
#76368
A
can
B
may
C
must
D
might
--Is Professer Smith giving the speech today?--It ________ be him. He is abroad right now.
#62935
A
mustn't
B
needn't
C
won't
D
can't
--It is really fun to hike and I often go hiking in the forest.--But hiking alone in the forest ______ be very dangerous.
#63596
A
can
B
must
C
shall
D
will
I can’t go to the cinema with you because I _______ stay here until my mother comes back.
#77684
A
can
B
could
C
may
D
must