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
I ____ have been there, but I ____ not find the time.
#62724
A
could; must
B
must; could
C
should; could
D
should; would
You ___ drink wine before driving, or the police will take your license away.
#75332
A
don’t have to
B
needn’t
C
mustn’t
D
may not
—Listen! Peter is singing in the classroom! —It _____ be him. He has gone back to his hometown.
#74925
A
must
B
mustn’t
C
may not
D
can’t
Sir, a Mr. Wang is waiting for you at the gate. ________ he come in or stay there?
#63307
A
Will
B
May
C
Shall
D
Must