短文改错

短文中有10处语言错误。错误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(∧)，并在其下方写出该加的词。

删除：把多余的词用斜线(\)划掉。

修改：在错词下面划一横线，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。

Climbing is my favourite sport．I am very fond it, especially in later autumn．One day early in the morning, my friends and I put on our sport shoes and start off．After climbing for half an hour, we got at the top of the mountain．There we had a good view miles around．To the north, a big river crossed the city．There were many ships sail busily．A lot of beautiful trees were there, too．The sun started to go down, for it was time we go back．On the road back, we were laughing and talking all the time．We had a good time on that day．