5. Complete the sentences using: give back, give away, give up.

1. After trying to solve the puzzle for hours, she decided to give up and ask for help. 2. He plans to give away all his old clothes to charity next week. 3. It’s important to give back borrowed books to the library on time. 4. Don’t give up on your dreams, even if they seem hard to achieve. 5. They decided to give away free tickets to the concert as a promotion.