1. I /write/you/bad situation/affect/lake/school
2.As you know/lake/school/be/beautiful
3.However/it/become/polluted
4.People/electricity/fish
5.A lot/fish/die/float/water surface
6.people/throw/rubbish/waste into/lake
7. now/bad smell/affect/school children's health.
8.What/you/think/polluted air?
9. look forward to/hear/you/see/protection/environment/local authority
10.sincere/long