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。

文中有10处错误，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(∧)，并在其下面写上该加的词。

删除：把多余的词用斜线(＼)划掉。

修改：在错的词下划一横线，并在该词下面写上修改后的词。

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 is on Sunday today.Early in the morning my classmate and I went to Xi Shan by bus to plant trees.As soon as we got there,we began work. Some were digging,some planted,and there were still some watering.Both of us were trying hard to plant as much as we could.All of us were afraid of fall behind.After work,we were wet all over.Looking at lines of young trees,we forgot our tiredness.We came back at 12.we all think it is necessary of us to take part in this kind of physically labor.

10. The basketball players 　　　　　each other the best luck in the game before it started.

A. wished　　 B. hoped

C. expected　 D. wanted

9. -Make yourself at home! Do you smoke?

-　　　 . It’s been years since I last smoked.

A. Yes, I do　　 B. No, I don’t

C. Not too much　 D. A lot

8. 　　　　environmental damage is done, it will take many years for the ecosystem (生态系统) to recover.

A. Even ifB. If only

C. WhileD. Once

7. A large party was held 　　　　the visiting president.

A. in memory of　　 B. in honour of

C. in favour of　　 D. in need of

6. -How fine the weather is today! Let’s go out for a walk.

-Well. I’d rather you 　　　　me alone for a while.

A. leave　　　 B. should leave

C. will leave　 D. left

5. But for their help, we 　　　　　the program in time.

A. can not finish　　 B. will not finish

C. had not finished　 D. could not have finished

4. I suggest you go out for a walk in the morning, for plenty of fresh air 　　　　good health.

A. adds to　　 B. contributes to

C. refers to　 D. relates to

3. Ms Green, please 　　　　me to meet with Jack tomorrow. I have an important appointment with him.

A. request　　 B. remind

C. recommend　 D. remember