I'm in agreement with Deanna about the capitalisation and wanna/gonna. Here's a few alternative versions of your sentences: 1. Yesterday, she gave back my DVD. 2. She took my picture with the new camera that she bought last week. 3. She wants to buy the shoes this saturday. 4. Yes! Tomorrow, I'll get a new cellphone from dad. 5. My dad promised to buy me a laptop if I get a good examination result. 6. Yes! I finally got a correct answer to this question! 7. I have a lot of memories from when I was still in high school. 8. That day, I knew we would break up because there were a lot of problems between us. 9. After that case, I'll just go on with my life and not look back.

First, always begin with a capital letter. This is very important. Avoid using wanna and gonna. This only makes your grammar poorer. It'll only make you confused because you are not using the right tense. 1. Yesterday, she gave me back my DVD. 2. She took my picture with her new camera that she bought last week. 3. She wants to buy the shoes this Saturday. 4. Tomorrow, I'm going to get the new cellular phone from my dad. 5. My dad promised to buy me a laptop if I get good results in my examination. 6. I finally got a correct answer for this question! 7. I had a lot of memories when I was in high school. 8. I knew we would brake up because there were a lot of problems between us. 9. After the case, I'm not going to look back and just go on with my life.