请修改下面的短文，短文中共有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：在错的词下面画一横线，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。
Like many other places, our hometown is either facing the problem of pollution. Unfortunately, people there have realized the importance of protection the natural environment. Factories have been taken measures to stop pouring polluted water into the rivers. The citizens not longer put waste, such as rubbish or human waste into the rivers. Every year, a great number trees are planted. As a result, the water in the rivers are becoming cleaner and cleaner. The hills around the city were covered with green trees and the air there is much more fresher than before.
The day before the speech contest(比赛)English teacher 1.
talked to me.She said that she and my schoolmate all 2.
wished me success,but it didn’t matter that I would 3.
win or not.When I was on the stage the next day,I felt so 4.
nervous as I shook like a leaf.There were so many people 5.
present.Suddenly,I caught a sight of my English teacher in 6.
the crowd.She was smiling but nodding at me.I remembered 7.
her words and calmdown.I did a good job and won the first 8.
prize.Now my picture and theprize is hanging in the library. 9.
Whenever I see them I will often think ofmy English teacher. 10.
“Practice makes perfect” was an old saying.It tells us that it 1.
does not any matter if we are slow at doing something.As 2.
long as we keep on trying and practice,well do a good job 3.
in the end.The saying is especial useful in English study. 4.
Since a student is poor at speaking,he should grasp every 5.
chance to open mouth and speak English.His oral English 6.
may be excellent one day due to his hard works.Not only is 7.
the saying useful in English study,it is also helpful in our 8.
daily life.To an extent,it is no short cut in doing everything 9.
since key to success lies in “Practice makes perfect”. 10.
Nuli told us what he wanted to be a scientist when he 1.
was in his childhood.He worked hard at all his lesson 2.
and tried to enter into a famous university in China, 3.
but he failed because the Cultural Revolution,which 4.
forced him to make a living at the age of 16.He serves 5.
as a farmer then a worker,but he spent his spare 6.
time studied and was finally admitted into a local college. 7.
He often says,“Young guys,do not lose the heart 8.
when you are in trouble.Believe in yourself forever, 9.
so you will surely make great progress sooner or later.” 10.
The alarm was first gone off on the third floor. 1.
People left the building hurriedly but in a orderly manner. 2.
They came out carry their shopping bags and their parcels， 3.
some not properly wrapped and some not even paid. 4.
Most passer by waited in the street to watch.Many of the 5.
shops and offices in the street had just closed.Mr Clement， 6.
the officer in charge of，ordered all hoses(软管) 7.
to turned to the roof of the main building.People were pushed 8.
back from the area of their own safety.Seven officers 9.
entered the basement or were driven back within minutes. 10.
Hurriedly they put on their masks(防毒面具)，ready to try again.
Dear Xiaohua,
It is four days since Mother accepted the operation. 1.
She is feeling much more better.The doctors told me 2.
the operation was successful,but because her old age 3.
she had to stay in hospital for other two weeks.The 4.
doctors also say it was quite necessary for her to 5.
do so.We expect to get a full report in two and three 6.
days.Please tell the good news to the rest of family 7.
as fast as possible.You needn’t come here.I’m 8.
able to look after Mother by myself.You’d better 9.
send flowers to Mother.She will feel happily. 10.
Yours,
Xiaohui