Read the definitions and choose the right variant.
1. A structure or building that is built to honour a special person or event:
2. A group of travelling performers including acrobats (= people skilled in difficult physical movements) or those who work with trained animals, or a performance by such people usually in a large tent:
3. A building, room, or organization that has a collection, especially of books, for people to read or borrow, usually without payment: