- She’s already two hours late. What ______ to her?A.can have happenedB.may have happenedC.should have happenedD.mu...
- He feels that his health ____ owing to ____ a long walk every other day.A.is improving; takingB.has been improved; ...
- ---Would you please give him the paper the moment he ____?--- No problem.A.arrivesB.appearingC.cameD.reaches
- . Our TV sets sell well, but ten years ago no one could have imagined such a big share in the market that they ____.A...
- The truth, Sir, is that the old man____ across the street when my car hit him.A.was to walkB.had been walkingC.wal...
- Over the past decades, sea ice _______ in the Arctic as a result of global warming.A.had decreasedB.decreasedC.has...
- —What do you think of the movie?—It’s fantastic. The only pity is that I ______ the beginning of it.A.missedB.had m...
- .—I’ve got to go now.—Must you ?I ______you could stay for dinner with us.A.thinkB.thoughtC.have thoughtD.am thin...
- Mary went to the box office at lunch time, but all the tickets ____out.A.would sellB.had soldC.have soldD.was sel...
- ----Could you lend me that book you ____ me about when I telephoned you?-----No,I am sorry, I can’t. I gave it to a f...
- ----I’m sorry, but there is no smoking on this flight.----Oh, I _____ that. Sorry, I won’t again.A.don’t knowB.didn...
- —May I remind you that a Mr. Wang is waiting outside, sir?—Oh, that’s right. I about it.A.forgetB.had forgottenC.f...
- Unluckily, when I dropped in , Dr. Smith ____, so we only had time for a few words.A.was just leavingB.has just lef...
- I haven' t seen Mary these past few days. I m afraid she ____ herself for some time.A.isn't feelingB.hasn' t been f...
- I ____ to send him a telegram to congratulate him on his marriage, but I ____ it.A.hoped, hadn’t managedB.has hoped...