You cook - she тут she cooks, потому-что тоже does? they fly - it i clean - she i buy - he you like - he i do - she we walk - he .. шестой класс

She cooks, потому что в конце глаголов после he, she, it пишется "s".
You cook - She cooks; They fly - It flies; I clean - She cleans; I buy - He buys; You like - He likes; I do - She does; We walk - He walks.