_____ your letter, I would have written back two days ago.
A. If I received
B. Should I receive
C. Had I received
D. If I could have received
查看答案
If Mother _____ me that truth when I _____ young, I would not make such mistakes so often now.
A. has told; was
B. told; was
C. told; had been
D. had told; was
If it were not for the fact that you _____ ill, I would ask you to do this right now.
A. were
B. had been
C. are
D. should be
If John Lennon and Paul McCartney _____, the pop music of today _____ very different.
A. didn't met; would be
B. didn't; would have been
C. hadn't met; would be
D. hadn't met; would have been
He made the demand that she _____ the place at once.
A. leave
B. leaves
C. left
D. to be left