Voy a tratar a responderlos. (I'm going to try to answer them)
1. Cayo
2. Cayo
3. Oi
4. Lei
5. Cayeron
6. Creyo
7. Cayo
8. Creyo
9. Construimos
Answer:
He is a sentence you can put for the first part:
A mi mejor amiga y me gusta comer hamburguesas y beber limonada.
Explanation:
It is saying you and your best friend like to eat hamburgers and drink lemonade. You can then film yourself saying the sentence.
Answer:
The correct form is "yo digo".