-I ______ stay up late. -Really? I didn’t. But I ______ working in the night now.
—I don’t like mutton ________ beef. —I don’t like mutton, ________ I like beef a lot.
The students usually need ________ sleep a night.
Pandas are ________ cute animals, and they are also ________ clever.
—Did Peter ________ to the movies? —No, he went swimming.
—The party is beginning. Where is Lucy now? —Oh, she can’t come. She ________ for a test at home.