仔细阅读下列句子，每句中均有一个错误，请找出并在横线上改正，-优题课

下面短文中有10处语言错误。请在有错误的地方增加、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（从第十一处起）不计分。
As far as I know, time is not always enough all of us. So first of all, you need to arrange your time good. You’d better to make a long-term study plan. That is to say, an one-month plan with more efforts to take up his weak subjects. And a short-term plan is equal necessary, if not more important. You have to make sure what you need to do each day, each class or even each minute. At the same time, it’s quite essential to keeping healthy. So take exercise for at least one hour and sleep for no less than seven hour a day. And don’t forget to eat well. More fruit was always right for you.

假定英语课上英语老师要求同桌之间互相修改作文，请你修改你同桌的以下作文。
文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。
删除：把多余的词用斜线（\）划掉。
增加：在缺词处加一个漏字符号（∧），并在该词下面写出该加的词。
修改：在错的词下划一横线，在该词下面写出修改后的词。
注意：1、每处错误及修改均仅限一词。
2、只允许修改10处，多者（从11处起）不计分。
In my hometown there was a river. Many students go and swim there,
so my parents don’t allow me to do that. They consider swimming
dangerous because of I am very thin and weak. They are afraid
they may drown. One afternoon, my friend and I went out to play.
They played in the river happy while I just stood in the bank.
I really wanted to join them. At last, one friend offered to teach
me where to swim. After half hour, to my surprise, I could swim.
I was exciting.

假定英语课上英语老师要求同桌之间互相修改作文，请你修改你同桌的以下作文。
文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。
删除：把多余的词用斜线（\）划掉。
增加：在缺词处加一个漏字符号（∧），并在该词下面写出该加的词。
修改：在错的词下划一横线，在该词下面写出修改后的词。
注意：1、每处错误及修改均仅限一词。
2、只允许修改10处，多者（从11处起）不计分。
Though great progress have been made in science these years, there are still many people live in poor
conditions. They make a living by collecting or selling used things. Their children cannot go to school
because they had not enough money to send their children there. How do you think so many people still
suffer from poverty now? The answer lies the population explosion. A president of a developing country
once said, “It is us who are to blame for the poverty because of we used to ‘produce’ children without
limit. Although this few words sound simple enough, they have clear pointed out one of the causes of the
population explosion.

下面短文中有10处语言错误，请在有错误的地方增加、删除或修改某个单词。
增加：在缺词处加一个漏词符号（∧），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（从第11处起）不计分。
Dear Grandpa,
How are you these days? I have been missing you very much after I went to college a year ago. Whenever I think of the old days, I feel very happily. I still remember when I was a child, you always held me in your arms and told me stories till I fall asleep. We often went to the fields to enjoy the pleasant view there. You told me the name of different plants and characteristics. Gradually, I became interesting in biology and chose to learn biology when I entered into the college. Now my friend Ann, together with me, are going to do field study and the findings will be use as materials for our research. Since we’ll do the study in our hometown,so I hope to see you then.

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。文中共有10处语言错误，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（从第11处起）不计分。
Schools should be clean and pure place. But now something bad happens. Some students cheated in examinations at school. As students, we often have examinations, many of which are sometime too difficult for us. In addition, some students not work hard at their lessons. So when taking examinations, they are dishonest in order that get better results to please his parents and teachers. I think it wrong to cheat in examinations though it breaks the rules of schools. We students should be honest and try to get good grades in studying hard instead of by cheating in the examinations. What's more, we should improve our study methods and get good prepared for examinations.