1. Vietnamese organizations / individuals / work together/ solve problem/ water pollution.

2. People/use/ less chemical fertilizers / go in for/ organic farming.

3. We /try /not throw/waste / rivers, lakes, streams or seas.

4. Government / require / all the companies/ follow / regulations strictly.

5. It/very necessary/ raise people's awareness/ important role/ water/ daily activities.

6. " Let's buy some yeast and make our own bread",said Mary. "The bread we are getting now is absolutely tasteless" (suggest)