Completa las siguientes oraciones con el relativo adecuado:
1. I don't know to go.
2. She doesn't know to do.
3. That's the reason she felt so sad.
4. I wasn't sure it was. But, it was really expensive.
5. He is the boy brother lives next door.
6. The computer, you bought last year, doesn't work.
7. Do you remember the day he was born?