---Is Kate your friend? --- ______.A. Yes, she is. B. No, he isn’t C. Yes, it is.
— The doctor is busy ________ his work.
________ the small town is!
Could you tell me_________?
—I phoned you at 7:00 this morning. But there was no answer.—Well, maybe I _________ morning exercises at that time.
—I’m sorry for giving you so much trouble.—__________.