短文填词根据短文内容和以下提示：1)首字母提示，2)语境提示，3)汉语提示。在每个空格内填上一个适当的英语单词。所填单词要求意义正确，拼写准确。(10分)
We are students of No. 10 Middle School. Recently we have(拜访) a paper factory. The paper factory is to the river which gives us  (饮用)water. But we found that the factory was p waste water directly into the river. Now the water in it is very dirty. Lots of fish have  . Some farmers say that some of their   (羊) and cows have become  and some have already died   they drank the water from the river. So we are   to you to see if you can do something about this. We think the  (污染) must be stopped right now. Thank you!
Yours sincerely，
Mike and John