Поставьте альтернативные вопросы к следующим предложениям.
1)There are ten student in my group
2)Mario wants to become a singer 3) It's already dark outside
4)Betty can play the piano
5)My mother is my best friends

Are there ten or eleven students in your group?

Does Mario want to become a singer or a conductor?

Is it already light or dark outside?

Can Betty play the piano or the violin?

Is your mother or father your best friend?