---Do your two children live in Beijing with you?--- _______. One is in Shanghai, the other is in Tianjin.

—Whose sweater is this?  —It looks like John’s. Oh, yes. It’s __________.

We must try ______ best to make our city more beautiful.

---Are Mr. and Mrs. Wang living alone in the house? ---Yes, they have three sons, but ______ of them live in their own houses.

_Is that Mary? _Yes. She’s nice and I like______very much.