—You seem to have known Dr. Ken for a long time.
—That’s true. ________ he joined our club years ago.
A. Since B.Until C. When D. If
You _______ her in her office last Friday; she’s been out of town for two weeks.
A. needn’t have seen B. must have seen C. shouldn’t have seen D. can’t have seen
---Are you coming to Tom’s party?
---I’m not sure. I______ go to the concert instead.
A. might B. must C. would D. should
When I arrived at the station, I found the train _________ for passengers.
A. waited B. had been waiting C. would wait D. wait
—How long are you staying in Nanan?
—I have no idea. __________.
A. Never mind B. That’s all right C. It depends D. It doesn’t matter
A. the; the B. a; a C. a; the D. /; a
