Must we sweep the floor right now? No, you _______. You can do it later.
There is a______ on the desk. A. cups B. book C. rulers
Mike ______ Betty are our friends. A. but B. or C. and
---Would you like to go out for dinner with me? --______,but I have to finish my homework first.
Could you please tell me___?
– Let`s go to Huangyao Old Town next weekend, shall we? --Sorry. I ____there many times. I don`t want to go again.