1.  As the most widely used language in the world, English plays a more and more crucial role in many people's life and study.

2.  As far as I'm concerned, communication plays a crucial role.

3.  As the information world is developing, the computer plays an more essential role in our daily life.

4.  As far as I am concerned , internet plays an essential role in transmitting all sorts of information .

5.  As the saying goes, if you live with a lame person you will learn to limp, friends play an important role in our life.

6.  As we know, friends play a crucial role in our daily life.

7.  As far as we know, science plays an important role in our daily life.

8.  Although China don't have perfect system for beauty contest, and sometimes it plays a role in business.

9.  As far as I am concerned, Friends play an important role in our daily life.

10.  As we all know, good interpersonal relationship plays a crucial role in building a harmonious society.