【正文】
Mr Li walks for one hour(走路一小時 ) in the park in the morning and sometimes dances with(和某人跳舞 ) his friends. Finally, Mr Li thinks the most important thing for(對 … 最重要的東西 ) a healthy life is to be happy(保持開心 ). He never worries too much (太操心 ) and always has a smile on his face(面帶微笑 ). 1. How old does Mr