1 . 假定英语课上老师要求同学们交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，要求你在错误的地方增加、删除或修改某个单词。
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：在错的词下面画一横线，并在该词下面写出修改后的词。

Jim is one of my closely friends. Two months ago，his mother bought a computer to him as a present. She hoped Jim will study hard with the help of the computer. To his surprise，Jim just wasted   plenty of time play computer games every day.   Now she regrets buying the computer. As matter of fact，a computer can do a lot of jobs for us. It is wide used in factories，hospitals，banks and so on. Many computers scientists are now trying to make the computer to think like a man. At my opinion，the key is that we should use it wisely.