--- Must I return the book this week?--- No, you _______. You can _______ it for 20 days.
You must ______ your cigarette when you are at the gas station.
Her grandparents are still in good health ______ they are over eighty.
China lies _____ the east of Asia and _____ the north of Australia.
—What do you think of his concert? —Oh, no one does______.
—Did your parents go to the movie yesterday evening? — No, We ______ stayed at home watching TV.