We are still at the airport. If it weren’t for the delayed flight, we _____ the concert right now.
A. must enjoy B. can be enjoying
C. would be enjoying D. should have enjoyed
Be careful when you cross this very busy street. If not, you may _____ run over by a car.
A. have B. get C. become D. turn
My teacher _____ me the key to the classroom but I’m afraid I _____ it.
A. had given, lost B. has given, lost C. gave, have lost D. has given, have lost
---John and Tom, you two clean the classroom today, _____?
---But we cleaned it yesterday.
A. do you B. will you C. didn’t you D. don’t you
Pleasant as they made it ______ in Jiuzhaogou, we felt tired after the long journey.
A. to travel B. travel C. travelled D. travelling
Although the police thought he was the most likely one, _____ they had no exact proof about it, they could not arrest him.
A. when B. until C. before D. since
