题目内容：

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1. 每处错误及其修改均仅限一词；

2. 只允许修改10处，多者（从第11处起）不计分。

Of all the recreations we enjoyed, a morning walk might be the most rewarding. In city like Chengdu and Hangzhou where can hardly avoid heavy traffic, it’s only in the morning that the roads are not crowded. It is hardly any traffic and one can enjoy the walk. In the morning the nature is at its best. Having a look at leaves of trees and you’ll find pearls of dew (露水) on it. Flowers wave their heads gentle and spread their pleasant smell. A walk in a big park or the bank of a stream is even more refreshing. A 20-minute walk every day gets people to look 5 years young.