Помогите с английской грамматикой, пожалуйста. 5 типов вопросов

1. Are strong schools the foundation of a strong nation?
2. Can the word 'school' mean anything from elementary school to university or only middle school?
3. Why was there no attempt to find a common standard of excellence?
4. The school must provide equal opportunity for learning to all students regardless of race, religion, sex, or ethnic heritage, mustn't it?
5. By the mid-19th century, the desire for free public education wasn't widespread, was it?

By the mid-19th century, the desire for free public education hadn't been widespread, had it?разделительный вопросCan the word 'school' mean anything from elementary school to university or only middle school? альтернативный вопросAre strong schools the foundation of a strong nation?- общий вопросWhy was there no attempt to find a common standard of excellence?-специальный вопросThe school must provide equal opportunity for learning to all students regardless of race, religion, sex, or ethnic heritage, mustn't it?- разделительный вопрос