______ went hiking last weekend because of the bad weather.
A. Someone B. No one C. Everyone D. Nothing
—Must I wait for you here?
—No, you ______.
A. don't B. can't C .mustn’t D. needn’t
Mary, put on your coat, ______ you'll catch a cold.
A. and B. or C .so D. but
We know that she enjoys ______ books very much.
A. read B. reads C. reading D. to read
I am very thirsty. Could you please give me ______ water?
A. some B. little C. many D. other
—Listen! Someone is playing ______ piano.
—Wow! ______beautiful music! I like it very much
A. a; what B. an; How C. the; What D. /; How
