短文改错。
假如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：在缺词处加一个漏字符号( ︿), 并在此符号下面写出该加的词。
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、只允许修改十处, 多者(从第11处起) 不计分。
Last Sunday I saw a worst storm in years. It came sudden and went on for over three
hours. After lunch, I went into my room to have a rest. The air was hot, but all was quiet.
Then a strong wind started to blow into my room. Pieces of paper on my desk flew high into
the air and some flew out the open window. As I ran out to catch it, big drop of rain began
to fall. When I come back into my house, it was raining more harder and harder. Then I heard
a loud crashing sound from the back of the house. When I ran out of my room to find out that
had happened, a big tree had fallen down and broke the top of the backroom.
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