The population of the world in 20th century became very much _________than that in 19th.
—__________? —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.