--- Let’s go to play football, shall we? --- Sorry, I can’t. I must go over the points the teacher explained ______ I forget them.
Our English teacher is ill, and we are all ______ her health.
I want your ______, sir. I don’t know what to do with it.
--- Have we ______ water? --- Yes, _____. We’d better get some.
The hotel has been enlarged; ____, it’s service is improving.
To keep the air clean, this hospital _____ all the patients ____ in and around it.