结尾部分：

Again, I would like to express our warm thanks to you.

我想再次对你表示感谢。

I am looking forward to a favorable reply at your earliest convenience.

我希望待尽快给我回复。

Thank you for your consideration and I will be looking forward to your reply.

谢谢你关心（关注），我期待你的回复。

套句总结

开头

Recently, the problem of ... has aroused people's concern.

最近,...问题已引起人们的关注.

Internet has been playing an increasingly important role in our day-to-day life. It has brought a lot of benefits but has created some serious problems as well.

互联网已在我们的生活中扮演着越来越重要的角色.它给我们带来了许多好处,但也产生了一些严重的问题.

Nowadays, (overpopulation) has become a problem we have to face.

如今,(人口过剩)已成为我们不得不面对的问题了.

It is commonly believed that... / It is a common belief that...

人们一般认为...

Many people insist that...

很多人坚持认为...

With the development of science and technology, more and more people believe that...

随着科技的发展,越来越多的人认为...

A lot of people seem to think that...

很多人似乎认为...

引出不同观点:

People's views on... vary from person to person. Some hold that... . However, others believe that....

人们对...的观点因人而异.有些人认为.....然而其他人却认为．．．

People may have different opinions on...

人们对...可能会有不同的见解.

Attitudes towards (drugs) vary from person to person.

人们对待吸毒的态度因人而异.

There are different opinions among people as to...

关于.... 人们的观点大不相同.

Different people hold different attitudes toward (failure).

对(失败)人们的态度各不相同.