Помогите пожалуйста дам 20 баллов
Выберите правильное слово и заполните пропуски в предложениях.
All, both or each?

1) Ann and Kate are sisters. They are at the same school. Both girls like English very much. 2) I don't know what he looks like.We have never seen … other. 3) … the children are in the classroom. We can begin. 4) … pupils would like to get good and excellent marks. 5) … pupil must have a packed lunch for the trip. 6) Bob and Sam are good at riding horses. They … are very good horse riders.