一、 单项选择(15分) ( )1. He is good at swimming. He is______ the swim team. A. at B. on C. in ( )2. Don’t leave the room_______ the light on. A. for B. with C. on ( )3. I don’t have a partner to __________. A. practice English B. practice English with C. practicing English on ( )4. Stop_______. It’s time for class now. A. talk B. to talk C. talking ( )5. This room is not _______for ten people. A.enough big B. enough bigger C. big enough ( )6. I don’t know__________. A. when will the plane leave B. when the plane will leave