1 . 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。

If you happen to be a heavy sleeper, that always wakes up about 20 minutes late for lectures, a special app calling Sleep If U Can is for you. Sleep If U Can is alarm app for students. When the alarm rings, some small task should be completed to turn the alarm on. For example, you needed to take a photo of some specifically things or shake the phone a number of times. In addition to, Sleep If U Can will also give yourself the latest weather condition. You can decide whether to take an umbrella with you before left home.