---We haven’t seen each other for ages.
---No, I don’t remember how many years ago _______ I last saw you.
A.it was that B.was it that
C.it was when D.was it when
We are still at the airport.If it weren’t for the delayed flight, we _______ the concert right now.
A.can be enjoying B.must have enjoyed
C.would be enjoying D.should have enjoyed
_____ his research paper, Professor Reagan experienced various hardships and loneliness for nearly half a year.
A.Accomplishing B.To accomplish
C.Accomplished D.Having accomplished
____ the flight to New York will be delayed is _____ I’m especially worried about.
A.When; what B.Whether; that
C.When; that D.Whether; what
---Have you finished your composition already, Jack?
---Yes, I ____ it within half an hour.
A.have finished B.finish
C.finished D.had finished
---Can you tell me Sam’s telephone number?
---_________.Who is Sam? The newcomer?
A.I think so B.That’s OK
C.I’d rather not D.I’m afraid not