Complete the second sentence so that it has a similar meaning to the first. Use have something done.

1. Someone is writing a new song for me right now.
2. Are you sure that someone will water your plants when you're on holiday?
    Are you sure that you ... when you're on holiday?
3. He was too busy, so he asked someone to post the letter for him.
    He ... because he was too busy to do it himself.
4. I think that someone has sent this book to me by mistake.
    I think that I ... by mistake.
5. Last weekend someone was painting Monica's kitchen.
    Last weekend Monica ...