1. Am I the teacher?
2. Are you in the classroom?
3. Are we all students?
4. Are boys some of the students?
5. Are two and two four?
6. Is that answer right?
7. Are the here?
8. Is he near the window?
9. Are there only two books in the picture?
10. Are there a great many people in London.
11. Is there a book on the table?
12. Is there a train in the station?