下文中共有10处错误。在缺词处加一个漏字符号（Λ），并在其下面写出该加的词。把多余的词用斜线（＼）划掉。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。
I have received and read your letter, in which you said you want to lose weight by dieting. It is natural that young girls at your age hopes to look beautiful. And in my opinion, health is more important than beauty. Do not let others' ideas to affect your normal life. If you do want to lose weight, it is good idea to do it by taking more exercise. But the most important thing is that you keep up a health state of mind. And it will help you on your studies and help us get over difficulties on dieting.I hope my advices will be helpful to you and I'm looking forward to hear from you soon.
All the guests managed to escape from the burnt hotel.
All the students went to Lushan during the summer holidays except ones who had already been there.
Rooms with few furnitures appear clean and bright.
By the snowstorm was ended,there was nearly nothing left on the farm.
The earthquake was lasted only 30 seconds,but caused great damages to the half city.