Choose the correct word to complete the sentences

1. Sarah finally gave me
   [away|back|up] my CD.
2. She's having problems now, but she doesn't give
   [away|back|up] easily.
3. When we were moving to another city we gave
   [away|back|up] two boxes of books and our old furniture that we didn't need anymore.
4. You shouldn't give
   [away|back|up] after the first failure!
5. If you don't need all these clothes, why don't you give them
   [away|back|up] to some people in need?
6. Please, give me
   [away|back|up] my laptop! I need it tonight.