I'm sorry to have ______ you waiting for a long time.

You （）him so closely; you should have kept your distance．

I'm sorry to be late. Thank you for waiting.（）

Sorry to have kept you waiting for so long.（）

33. --- I’m sorry to keep you waiting.

Do you want to wait? Five days（）too long for me to wait.

Sorry to have kept you waiting for so long.（）

There is only one boat ______ for hire. I'm afraid you have to wait for the next one.

You must have waited here for a long time ,___________you?

I am so sorry to interrupt you again.（）

We have kept（）our friendship by writing to each other, so we are true friends.

I have been waiting for you _______.