You _______ see a dentist when you have a toothache.
#78314
A
may
B
need
C
should
D
can
推荐题目
--Have you decided where to go for your summer vacation? --Not yet. We_________ go to Mount Lu. It is a good place for vacation.
#76514
A
may
B
should
C
need
D
must
— Who’s singing in the next room?— It ____ be her . She has gone to New York.
#78019
A
can’t
B
must
C
shouldn’t
D
can
— Oh, my cat is really fat.— You __ have given her so much food.
#63412
A
wouldn't
B
mustn't
C
couldn't
D
shouldn't
------She looks very happy. She ______ have passed the exam. ------I guess so. It’s not difficult after all.
#63502
A
should
B
could
C
must
D
might
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