怎么来判断现在分词和过去分词做状语
1 John rushed out in a hurry,------(leave)the door open.
2 With trees ,flowers and grass ------( plant )everywhere ,my hometown had taken on a new look.
答案是leaving和planted 一般是怎么来判定的啊,最好越简单越好,比如看句子的成分什么的 我知道这里是做主动和被动的,但是这种题目一看到下意识的就想到过去式和过去完成时来填空