Unit2 We have played football for a yearnow. 一、BCCDBCDADC 二、1. By taking herdog for a walk every day. 2. Playingfootball. 3. Riding his bike to workevery day. 4. A week ago. 5. What excise they do to keep healthy. 三、 1. E 2. B 3. A 4. C 四、 1. You’d better take part in 2. I’m too sleepyto 3. Why don’t you spend some time 4. How long have you been