1 Are they reading books in the reading room? 2 Are they reading books in the reading room or at home? 3 Who is reading books in the reading room? 4 They are reading books in the reading room, aren't they? 5 What are they reading in the reading room?
2 Are they reading books in the reading room or at home?
3 Who is reading books in the reading room?
4 They are reading books in the reading room, aren't they?
5 What are they reading in the reading room?