The number of the books in our school library _______ about50,000.
—__________?—No, it’s on the sofa.
—__________?—Yes. I want some apples.
—Where are the socks? —__________.
—Paul, do you _________ an American friend?—No, I don’t. But my sister __________ one.
I like English, __________ I don’t like history.