试题题干
Fill in the blanks with the words given in brackets. Make changes or add something where necessary．
When you run, 
(foot) leaves the ground before the other comes down.
参考答案
试题解析
the other“另一个”，根据句意是“每个脚都要在另一只脚下降之前离开地面”，所以是each foot。
Fill in the blanks with the words given in brackets. Make changes or add something where necessary．
When you run, (foot) leaves the ground before the other comes down.
the other“另一个”，根据句意是“每个脚都要在另一只脚下降之前离开地面”，所以是each foot。