下面短文中有10处语言错误。请在有错误的工方增加、删除或修改某个单词。
增加：在缺词处加一个符号（^），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. 每句不超过两个错误；
2. 每处错误及其修改均只限一词；
3. 只允许修改10处，多者（从第11处起）不计分。
Today we had a chemistry test. I found the test difficulty, but I tried hardly to do it. Suddenly Mary, my best friend, asking me to let her to copy my answers. After think for some time, I let her copy my answers. But after the test, all of us were called to the teacher's office. The teacher was angry because we had same answers in the tests. We were warned not to cheat again so she would need to see our parents. I was very upset. I didn't cheat. I was just helping a friend. Why does she punish me?
短文改错 (共10分,每小题1分,满分10分)
Last Sunday my father and I went fishing along a river. We found the water very dirty that we could hardly catch any fish in it. A lot of factories along the river always poured their waste water and rubbish straightly into the river, which made the river polluting. In this way most of the fish in the river was killed. Unless the rivers all over the country are polluted like this, no living things will be exist in the water. As we all know, environmental pollution do great harm to living things and human beings. Now more and more people have realized what serious this problem is. Our government is doing her best to take measure to fight against pollution. We expect that water in every river will be made cleaner and cleaner before long.
短文改错（共10小题；每小题1分，满分10分）
Dear friends,
I’m awfully sorry to hear that a horrible but severe earthquake unexpected hit your hometown. Facing the rarely-seen disaster, we remain so calm and strong –willed that we are all moved to tear. A friend in need is a friend indeed. Think about your present situation, we can wait a minute to make every bit of effort to help you. I, as a chairman of the Students’ Union, on behalf of all my schoolmates, express our most sincerely pity and care for you. Besides, we have made donation of 120,000 yuan to you, expecting that it can help you go through the difficult. A better hometown can rebuilt. Remember we won’t be far away when you need any help.
短文改错 (共10小题；每小题1分，满分10分)
Recently I read an article in a magazine. It was of a mother who was worried about his son just because of he always kept his hair long. The mother thought that was not right, but the son felt there was nothing unusually about it. Different generations have different opinions on the same thing. That is what is meaning by “ the generation gap”. We can see them in our daily lives. Most of our parents like listening to old song while young people prefer pop songs. Every time my father finds me listen to rock music, he always shouted, “Shut it off. It’s awful!” How can we deal the generation gap?
短文改错（共10小题；每小题1分，满分10分）
My summer travel started terribly. I was at the Shanghai Railway Station buy a ticket to Hang Zhou. I was going to visit a friend here and after that I would go to Xiamen for long holiday. I bought my ticket but turned around to pick up my bag from the floor and then I realized that someone had stolen it. Luckily I had all my money on my pocket, but the only clothes I had was those I had on. It felt very strange to travel without any luggages. When I finally arrived at my friend, he lent to me lots of clothes. I feel very happy that I could change my clothes at last.
短文改错（共10小题；每小题1分，满分10分）
Dear Tom,
Last year I take a part-time job in the international camp for children. I have been telling one more worker will be needed this year and I think you are fit it. Why not to join us? The camp is at the foot of a small hill close to a river. It is so beautiful place! We can hear birds singing happy all around. Everybody sleep in tents, that is very exciting. We usually work only five hours a day, so we will have plenty of spare time to visit the area and have funs. I am sure it will be an unforgettable experience. If you are interesting, reply to me soon.
Yours,
Jack