--- ______ hard work you have done! --- It’s very kind of you to say so.
— You didn’t use to play tennis, ______? — Yes. I still like playing tennis now.
__ they were not rich, they tried their best to send their child to the best school.
Smoking is bad for your dad’s health. You’d better ask him to ______.
— What was your brother like when he was young? — He _______ be quiet, but now he’s very outgoing.
— What do you think of Beijing? — Wonderful. It ________ changed a lot in the last few years.