----I passed the college entrance examination.----Congratulations! You________.
#63093
A
could have studied hard
B
must have studied hard
C
should have studied hard
D
might have studied hard
推荐题目
(2014·济南市名校第四次诊断性测试)—Is the letter from your mother?—Yes.But she ________the letter herself，because she doesn’t even know one word.
#62194
A
needn’t have written
B
can’t have written
C
might not have written
D
should not have written
Why _______ you be so stubborn? You should think over my advice on this matter.
#62210
A
may
B
shall
C
dare
D
must
---Excuse me, may I take the magazine away? ---No, you ______. You ______ only read it here.
#77395
A
mustn’t; can
B
mustn’t; need
C
may not; need
D
needn’t; can
Since nobody gave him any help，he ________ have done the research on his own.
#62304
A
can
B
must
C
would
D
need