Choose the correct word

1. [My sister|I] isn't an actress. [She|Her] is an architect. These books are [hers|her].
2. Lucia is from Argentina. [She|Her] is fifteen years old. [Her|She] favourite singer is Lady Gaga.
3. The waiters aren't from Peru. [They|There] are from Brazil.
4. [We|Our] are Spanish. [Our|We] favourite actor is Gael García Bernal. [He|His] is great.
5. Andrew's from Italy. [He|His] is sixteen years old. [His|He] favourite sport is tennis. This ball is [his|he].
6. Peter and Lucy are fourteen years old. [They|Their] are from England. [Their|They] favourite subject is Science. These books are [theirs|their].