—We will hold a wonderful picnic for you when Chidren’s Day 。A. comes B.will come C. is coming
He always gives me useful advice when I don’t know _____.
Mike has much difficulty ________ Chinese so he often asks me ________ help.
As a policeman , you must yourself and your work.
I decided not to wait any longer ______ I waited for him at the station for two hours.
You’d better ______ others during the night. It’s not polite.