For the second part the answers are:
1. Vivo
2. Vivimos
3. Viven
4. Abren
5. Abrió
For the third part the answers are:
For the First box these are the answers:
1. David vive en Miami.
2. David abre muchos Tweets.
For the second box these are the answers:
1. Cierto
2. Falso
For the third box these are the answers:
1. Ella vive para cantar.
2. Nosotros vivimos para cantar.