清华儿童英文二页31页

、BCCDBCDADC二、1. By takingher dog for a walk every day. 2.Playing football. 3. Riding his bike towork every 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