I am trying to work out the problem and I wouldappreciate_____ if you could turn the music _______.

The factory ______ its waste into the river, but nowit deals with the waste in a new way.

I think Miss Gao must be in the library. She said she would go there.—No, she _____ be there. I have just been there..

Mr. White told us _______ run up and down the hall.

They want to know ______do to help us.