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。

    As we know, when senior students finish their school, most of their reference books are thrown away, which are still in good condition. How a great waste it is!

    I suggest that students must recycle all these books. On the one hand, recycling them can save a lot of natural resource, which are used to make textbooks. On the other hand, the notes in the books are helpful to whoever need them.

    In fact, recycling textbooks has been increasing popular in such countries like America and Australia. We should learn from them, but make every effort to build energy-saving society. In my opinion, it is of much benefit from our present and our future.

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。

    A musician friend of me once went on an English course during his summer holidays. What he really wants to do was to improve his ability to think and react quick in spoken English. He said speaking a foreign language always made him to feel nervous, even if after three years of study. One of the teacher on the course had very strong views on music, but was not afraid to express them in the lessons. My friend spent most of the class time argue about music with a teacher. When his course finished, he found that his nervousness in English has completely disappeared, and he was speaking far fluently than before.

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。

    In the future, life will be very different for that of today. First, with medical research develop faster and faster, on the average, a person will live to the age of about 120. Second, because of the discover of new energy, environmental pollution will under control. Third, people's daily life will change greatly, either. For example, robots will do all your houseworks for you; your chair will change its color to match which you're wearing; you can also put your mobile phone round your wrist and see the caller after you are speaking; we even can take a new elevator into space for a holiday.

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处起)不计分。

    I received your e-mail just now. Don't worry about me. I'm getting on good with my research work. But to my great surprised, you say you will give up in learning English. The reason is that you have not done well in it recently and she have lost interest. I'm afraid I can't agree with you. I know it is difficulty to learn English, but English is wide used in the world today. It will be important tool in our future work. Beside, it is becoming more and more important in our daily life. If you study hard, you will succeed. Do remember that where there is a will, it is a way. I'm looking forward to hear good news from you.

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限一词

2．只允许修改10处，多者（从第11处起）不计分。

    I used to be a fat girl, weighs 80 kilos. I was afraid of having PE classes because I was often laughed on the playground. At first, I decided to eat less in order to lose the weight. However, just several days late, I began to feel tired and can't concentrate in class. My parents took me to see our doctor, that told me what was not a good idea to eat only a little. Instead, he advised me to eat a balanced diet but encouraged me to work out every day. I followed his advices and gradually I became very slimly.

增加：在此处加一个漏字符号(∧)，并在其下面写出增加的词；

删除：把多余的词用斜线(＼)划掉；

修改：在错的词下划一横线，并在其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（从十一处起）不计分。

    During the vacation, I quarreled with my mother and then we begin to overlook each other. Anyway, when that was time for me to go back to school, she went up to me with a box of homemade pancake in her hand. Patting me on shoulder, she said gently, "Take this on case you feel hungry on the train. Sweetheart, you're always my good girl." Still feeling a bit of angry, I refused her but quietly turned away. Had nothing to do on the train, I couldn't help thinking about the scene of leaving and felt terrible sorry. What I wish I could have said sorry to her sincerely before I left!