假如英语课上老师要求同桌之间交换修改作文，请你修改你同桌的以下作文。文中共有10处错误，每句中最多有两处。错误涉及单词的增加、删除或修改。

Question

假如英语课上老师要求同桌之间交换修改作文，请你修改你同桌的以下作文。 文中共有 10 处错误，每句中最多有两处。错误涉及单词的增加、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：在错词下面划一横线，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 处不计分 .

  I didn’t realize the importance of working in groups since I was chosen monitor of my class in high school. At first I did most of the duties myself while other students cared few about class activities. As a result I was tired out and depressing. Then I turned to my teacher and he gave me some advice how to cooperate well with other. Thus I begin to realize the strengths of my classmates and have everyone to do his part in class. From my experience I strongly feel that it is work in teams instead of on his own that has freed me from trouble and made me work more efficient. Therefore we need teamwork spirit in our lives.

Answer 1

1. since-until  2. few-little;  3.depressing-depressed;  4. 加 on/about;  5. other-others

6. begin-began; 7.
去掉 to    8.work-working ；    9.his-my ；    10.efficient-efficiently