This is the question______ we are talking about now.A. which B. who C. what
— Who’s singing in the next room? — It ______ be Mary. She ______ New York.
Amy isn’t as quiet as she ______. She is quite outgoing.
— Don’t ______ this old man. It’s not polite. — Sorry, we won’t do that again.
.—It’s nice of you to help me with my homework.— ___________.
I ________ my homework while my parents ________ TV at 9 last night.