1.  The composition was about how to protect the environment and it must be completed before next Wednesday.

2.  They protected our homes and defend our motherland desperate .

3.  This protect the people from the deseases' attack.

4.  With theose protect problems the health of the people surely will increase.

5.  they know how to protect themselves.

6.  people have learn to protect themselves and to defend ill ; second the medicine is developed.

7.  In the other hand, the government should establish law to control the birth of people and pollution, it can protect the rosure of fresh water .

8.  I believe we shouldn't face with the lack of fresh water if we know how to protect the fresh water.

9.  That's to say, we needn't save them or protect them.

10.  Secondly, we have to take all measures to protect them from being polluted and try our best to make use of the polluted water lastly , we May fall on the chemical techonoly that will make us get more fresh water from oceans.