Помогите пожалуйста, очень вас прошу, умоляю. Спасибо заранее. Очень безотлагательно

1. Did you enjoy yourself the party last night?
2. Have you hurt yourself badly?
3. I repaired my bike on my own.
4. We don't know how to use the new computers.
5. I have forgotten what Mike told us to do. 
6. Paul wasn't sure who to ask for a technical advice.
7. I went by myself to the cinema yesterday.
8. In the interview, I didn't know what to say about my hobbies.
9. Luke and Paul have been talking to each other for ages.
10. Did you draw this by yourself or did someone help you?