一、单项选择（本大题共20.小题，每小题2分，共20分)
( ) 1. —— How long have you ______ the car? —— For half a year.
A. have B. buy C. had D. bought
( ) 2. ——______ have you been playing ping-pong? —— For five years.
A. How often B. how far C. How long D. When
( ) 3. Could you please ______ me such boring questions? I’m tired.
A. not ask B. not to ask C. not asking D. don’t ask
( ) 4.Nobody is in the room. Could you please ______ the light?
A. turn on B. turn up C. turn down D. turn off
( ) 5.. — What’s the matter with Tim? — .
A. He is writing letters B. He has a bad cold
