---I’m sorry, but there is no smoking on this flight.---Oh, I _____that. Sorry, I won’t again.A. don’t know B didn’t know C. won’t know D. haven’t known
There were some chairs left over _____ everyone had sat down.
I used to love that film ______ I was a child, but I don’t feel it that way any more.
You’d better not leave the medicine ______ kids can get at it.
He found it increasingly difficult to read, ______ his eyesight was beginning to fail.
31. -----Do you have a minute? I’ve got something to tell you. -----Ok, ______ you make it short.