单项选择题
A.short B.black C.light D.long
A. they haven’t practiced enough B. the equipment is in need of repairs C. they perform risky acts without nets D. some are HIV positive
A. I’m sorry you can’t. B. Sure, it’s my pleasure. C. Well, take things easy. D. I’ll be glad to. E. Thank you. F. Really G. You’re always welcome. H. I’m sorry to hear that.