I’d like to do something for you ____ everything you’ve done for me.
Several months later, he found Mr. Jackson very difficult ________.
I’ll never forget the place _________ I visited nine years ago.
—John isn’t a football coach, is he?—__________.
School children must be taught how to deal with dangerous ________.
—I don’t think the company may offer you a good pay.—__________,I won’t take the job.