Sure! Here are the completed sentences:

1. Let’s hurry! Our plane is going to **take off** soon!
2. I need to **take back** my books to the library tomorrow.
3. I’ll be away for a week. Could you **take care of** my fish while I’m gone?
4. It’s getting warm. You should **take off** your jacket.
5. Patrick decided to **take up** water color painting.
6. The army tried to **take over** the country during the war.
7. Who is going to **take out** the garbage?
8. I had to **take down** the phone number yesterday, but I lost the paper.
9. My uncle started a new business last year, and it really **took off**.
10. You cook the food for the party and I’ll **take care of** the drinks.
11. I was sick, so I decided to **take off** a day from work.
12. Katie **takes after** her mother. They both have brown hair and blue eyes.