Find a mistake and correct

Find a mistake and correct.
   1. If I were you, I will become a doctor.
   2. If she doesn’t came, I will miss her.
3. If I  finished the report, I will went out with you.

4. If he finish this work, he can go home late tonight.

5. If he known the answer , he would help us to finish our test now.

6. If I were free, I will go to your party today.

7. If you doesn’t clean the floor, you wouldn’t be played volleyball this afternoon.

8. Which high school would  you choose to study if you have a choice?.

9.  She must go to bed early if she will be tired.

10. if my mother agree, I will go to your hometown with you.