Составить пять вопросов разных конструкций: общий,специальный,альтернативный,разделительный и вопрос к подлежащему :Our students learn four foreign languages

Do our students learn four foreign languages?
How many foreign languages do our students learn?
Do our students learn four or five foreign languages?
Our students learn four foreign languages,don't they?
Who learn four foreign languages?