Choose the correct options

1. She is the barista 
   [who|which|where|whose] makes the best coffee in town.
2. This is the vending machine
   [who|where|whose|that] doesn't work. Can you fix it till tomorrow?
3. They are going to Italy next month, but I don't know 
   [who|where|whose|that] they are going to stay.
4. Samantha, 
   [who|which|whose|that] I was in love with at school, is now my colleague. What are the odds?
5. This cup,
   [which|where|whose|that] you gave me for my birthday, is broken. Too bad, I loved it.
6. My sister, 
   [who|where|whose|that] is five years old, has won her first medal today.
7. I don't know the man
   [which|where|whose|that] lives next door.
8. I don't know 
   [who|which|whose|that] sketchbook that is, but I know that Maria has lost hers recently.
9. I can't choose a new smartphone. Do you know 
   [who|which|whose|that] one is better?
10. I don't know 
    [who|which|where|that] that coffee shop is. Can you send me the location?