Замените слово в скобках личным местоимением
1) She knows (English) very well. 2) (The children) play football in the yard. 3) (A modern factory) is a complex high-tech organism where you have to study constantly. 4) (My colleagues and) I enjoy meals, talk and share our impressions of the day. 5) (Olga) is a beautiful young woman of twenty-seven with blue eyes and a charming smile.