Исправьте ошибки 1)i'll do these works afternoon classes 2) there is a cow, a pig and two sheeps in the back yard 3) i've brought you a lump of news 4) we usually go to work on feet 5) we got many new informations from mr dunston's report 6) our chemistry teacher gives us good knowledges

1) I'll do this work after classes
2) There is a cow, a pig and two sheep in the backyard
3) I've brought you a piece of news 
4) We usually go to work on foot 
5) We got much new information from Mr Dunston's report 
6) Our chemistry teacher gives us good knowledge