一、BCCDBCDADC 二、1. By takingher dog for a walk every day. 2.Playing football. 3. Riding his bike towork every day. 4. A weekago. 5. What excise they do to keephealthy. 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
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