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

Are there ten students in your order my group . does Mario want to become a singer. 3 is it already dark outside. 4. can Betty play the piano. 5 is my mother my best friends