Put in the right reflexive pronounExample: Travis wrote this song by

Put in the right reflexive pronoun
Example: Travis wrote this song by "himself".
1. Jack, please clean up your room by ______.
2. Did she draw this beautiful picture by ______.
3. This trip could be dangerous, take care of ______.
4. When my brother wos 3 years old he could't do anything by ______.
5. Yesterday i hurt ______ when i was riding a bike.
6. They are good cooks. They can cook everything by ______.
7. We arranged for Frankie's birthday party by ______.
8. Do you need my help? -- No , thank you. i'll do it ______.