1 . 以下句子，每句有1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11处起)不计分。

It snows heavily last night and I got up early than usual this morning. I cleaned the snow from the sidewalk in the front of my house before leave for school. It was such cold that I wanted seek warmth in the house. But then I sudden noticed the houses which an elderly neighbour lives in. I didn’t think he could deal with the snow by him, so I cleared his sidewalk and driveway. How a surprise it probably was when he woke up.