I'm sorry that I've kept you _______ for so long.
A: to wait
B: waiting
C: to be waiting
D: waited
A: to wait
B: waiting
C: to be waiting
D: waited
举一反三
- —I’m sorry to have kept you ______ for such a long time.—It doesn’t matter. A: wait B: waiting C: to wait D: is waiting
- ---I'm sorry to have kept you_____[br][/br] ---It doesn't matter .I've just arrived. A: to wait B: waiting C: waited D: wait
- I am sorry to have kept you __________ for two hours. A: wait B: to wait C: waiting D: waited
- I'm very sorry ______ the whole morning. I forgot the appointment. A: to keep you wait B: to have kept you waiting C: to keep you waiting D: to keep you to wait
- I’m sorry you’ve been waiting so long, but it’ll still be some time _____ Brian get back.