I am very sorry ______ you waiting here for long .
举一反三
- I am sorry( keep )_______ you waiting for so long .
- 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 to have kept you ______ for such a long time.—It doesn’t matter. A: wait B: waiting C: to wait D: is waiting
- 智慧职教: I am very sorry ____ you such a lot of trouble by the delayed shipment.
- I am sorry to have kept you __________ for two hours. A: wait B: to wait C: waiting D: waited