Look at the 's in the sentences. Choose 's (possessive) or is

1. Liza's father is Italian. ['s|is]
2. It's a great story. ['s|is]
3. Paul's at the school. ['s|is]
4. This is my sister's car. ['s|is]
5. Sarah's daughter is very clever. ['s|is]
6. What's in your bag? ['s|is]
7. Jack's very intelligent. ['s|is]
8. The girls are Carol's sisters. ['s|is]
9. Tom's laptop is new. ['s|is]
10. It's a cheap book. ['s|is]