We are sorry _______ you waiting so long.
举一反三
- I am sorry( keep )_______ you waiting for so long .
- I'm sorry that I've kept you _______ for so long. A: to wait B: waiting C: to be waiting D: waited
- Fillin eachblank with "catch", "keep", "talk", or "make" in the word's proper form.I'm sorry to have ____ you waiting so long.
- I’m sorry you’ve been waiting so long, but it’ll still be some time _____ Brian get back.
- I am very sorry ______ you waiting here for long .