帮我检查一下初3英语作文有什么语法错误.
Thereisarivernearmyhometown.Manyyearsago,thisriverwasverybecautiful,manytreeswereplantedneartheriverbypeople,andthereweremanyfishesintheriver.Sopeoplelikedtodoexerciseandwalkinginthemorningoreveningthere.Butnow,everythinghaschanged.Inrecentyears,manyfactorieswhichpourwaterhasbuiltneartheriver.Andtheymaketheriverwaterbad.Andpeopledon'tliketogotherefromthenon.