Mr. Smith has promised that all of us will pass the exam, so it ____ so difficult as you imagine.
A.can’t have been | B.can’t be |
C.mustn’t have been | D.mustn’t be |
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Mr. Smith has promised that all of us will pass the exam, so it ____ so difficult as you imagine.
A.can’t have been | B.can’t be |
C.mustn’t have been | D.mustn’t be |