—Where did you get The Frog written by Mo Yan?
—I picked it up from a bookshop online if you ________ know.
A.must B.will
C.can D.shall
When I lived with my roommates in the university, we ________ often talk into the night.
A.might B.could
C.should D.would
________ your letter, I would have set off two days ago.
A.If I could have received
B.Should I receive
C.If I received
D.Had I received
You ________ in person; a telephone would have been enough.
A.couldn't have come B.needn't have come
C.shouldn't have come D.mustn't have come
I felt surprised that anyone of his intelligence ________ such an easy test.
A.might have failed B.could have failed
C.should have failed D.must have failed
________ from the bright smile on his face, he ________ in passing the job interview.
A.Judging; must have succeeded
B.Judging; might succeed
C.Judged; must have succeeded
D.Judged, might succeed