If only you __________ him what I said! Everything would have been all right.
A. didn't told B. hadn't told
C. would not tell D. would have not told
We didn't know his telephone number, otherwise we _________ him.
A. would have telephoned B. must have telephoned
C. would telephone D. had telephoned
It was essential that the application forms ___________ back before the deadline .
A. must be sent B. would be sent
C. be sent D. were sent
_____________ cease(终止) advertising, prices would be significantly reduced.
A. Were they to B. Could they
C. If they D. Would they
Much labor would have been saved if the electronic computers_____________ before.
A. had invented B. were invented
C. should have been invented D. had been invented
There was a(n)________silence in the live interview,when no one knew what to say to the audience.
A.ashamed B.disappointed C.desperate D.awkward