When I went to their house, there was no light on. They _____ at home.
#62992
A
can’t be
B
couldn’t be
C
can’t have been
D
mustn’t have been
推荐题目
-- ________ you tell me how to write it in English?-- I'm sorry, I can't.
#75421
A
Can
B
Must
C
May
D
Need
--- It’s so late. Our son______ be back!--- Don’t worry. I dare say he ______ have some extra work to do.
#62953
A
can; must
B
will; might
C
should; must
D
must; may
------ May I smoke here?------ If you____, that's the smoking section over there.
#63312
A
should
B
could
C
may
D
must
Surely Mr. Peterson ____ have forgotten to buy presents for his beloved family members. After all, it was Christmas!
#63397
A
shouldn’t
B
mustn’t
C
can’t
D
needn’t