1.  I will use my holidays to do something for some companies with my knowledge.

2.  I will use my holiday to do some society work so as to know the world outside the campus.

3.  With the increasing population, more people will use water.

4.  Certainly, Fresh water will never be used up.

5.  Second, with the industrol developing, much fresh water will be used.

6.  At first, when the population increases, people will use much more water.

7.  with the development of our society, factory will use much more fresh water than they used to and they always send out their waste which polluted our fresh water.

8.  In common view, fresh water will never be used out .

9.  Many of them won't use English in their future teaching.

10.  Nearly all knowledge they studied at school will be used in their live .