11.  We all know that "Change favors the prepared mind".

12.  i know that many students learn english by memorizing long lists of test words, even me, almost every student in china does this day by day, and this lasts 6 years or longer.

13.  I know it is really boring to memorizing long lists of test words since I have done it 9years.

14.  We all know one person can't hold the vision strongly.

15.  You know our company has a complete set of manufacturing equipment, so we concentrate on reduce the cost when producing the products.

16.  We know, staff is the basic construction of a company.

17.  We all know that every coin has two sides.

18.  I know that imagination and reality are totally two things.

19.  We all know that blacks sacrificed a lot through the period of pursuing equality and earning respect from the United States society.

20.  I know that many challenges are there, just in the near future.