外语根据单词的首字母填空

外语根据单词的首字母填空
At different times in a man’s life his food has different effects on his body.Among children f___
Is quickly changed to the power to run.Most of a young man’s food is spent on growing t____,we grow upwards only d_____the first twenty years od our l____,not later.Perhaps the most difficult time is when a man r___ sixty years of age.His body and mind b___ restful,without much work or interest.That’s when food change quickly to f___