单元检测 一、单项选择(共15小题;共15分) 1.- Do you know man over there?- Yes. He is artist. His name is Li Yundi.A. the; anB. a; theC. a; anD. the; the 2.Lily is ready people any time. She always gives her seat to someone in need.A. to helpB. helpC. helpingD. to helpful 3.Take this medicine and it will make you