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。每处错误涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏词符号(∧)，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：在错的词下画一横线，并在该词下面写出修改后的词。

注意：1．每处错误仅限1词；2．只允许修改10处，多者(从第11处起)不计分。

  Li Lin is a senior three students who devotes himself to his lessons every day．Last Saturday, as usual, he went to several courses．In the evening, he studies at home until deep into the night．He was too sleepy and tired that he couldn't work effectively．In Sunday morning, Li Lin was about to study when his father came up and advised him to have a break．Soon they had good idea．They bought a kite which they liked it very much and then the family went to the suburbs where Li Lin enjoyed himself fly the kite．The family had a picnic together but felt very relaxed in the open air．On Monday, Li Lin was energetic and actively in class．He said it was only why he had a better weekend.