---Are Mr. and Mrs. Wang living alone in the house? ---Yes, they have three sons, but ______ of them live in their own houses.
-My mother is ill in hospital. ——_______. A.That’s OK B:.All right C.Thank you D. I’m sorry to hear that.
—You look pale. What’s _______ with you? —I have _______ headache.
My mother often spends 2 hours ______ housework every day.
— Must I come at four o’clock? — Oh, no, you ____.
It’s too cold .You had better ______your coat.