I help him he helps me. We help each other.A. but B. and C. or
--- Could you tell me______ in Yangzhou? --- Of course. I think it’s in Dongguan Street.
--- Have you solved your problem?---I've kept on thinking about that matter ______, but I have no idea yet now.
I am surprised to see you not smoking. You ______.
--- The two old friends were ______ busy ______ with each other ______ the time.--- Yes. They hadn’t met for long.
______ of the students in my class plan to go abroad for ______ study in the future.