单项选择题
A. Hold on a second, please. I’ll put him on. B. Sorry, Mr. Wang is not available fight now. C. I am not sure because I don’ t know what he is doing. D. Thank you very much for callin
A. I don’ t know exactly why, either. B. I guess we are wrong this time. C. I know. But perhaps you don’ t know why. D. George, you know, is one of the hardest working students among us.
A. Never mind. Shall we meet on Sunday B. Your project I have no time studying your project. C. OK. What about Friday morning D. OK. Library is the best place for us to meet.