语法和词汇知识
21．---May I serve your dishes, sir?
---_____________．
A．No, go ahead B．Yes, help yourself C．Hurry up D．Yes, please
22．______ a happy life, try to look at the positive side in every situation.
A. Living B. To live C. Having lived D. Live.
23． ---How long have you retired ,Grandpa?
---Well, four years. But you know, I_____ for Courtaulds for over forty years.
A. have worked B. worked C. had worked D. work
24. ---How did you kill your time last weekend?
---Harry took me to a (n) ________restaurant for our anniversary.
A. active B. reliable C. fancy D. worth
