Answer:
PART A:
1. fui
2. fue
3. fuimos
4. fuiste
5. fueron
6. fue
7. fue
Explanation:
I'm not sure about part B
Answer:
Correct answer: ¿Tú vas al patio para jugar?
Explanation:
It translates to: Are you going to the backyard to play?
I don´t know exactly what the image is, but given your description that answer seems correct.
I thnk it means Look at that big fish or look how big that fish is
Cuanto cuesta means "how much does it cost" and the best choice would be "cuanto es" which means "how much is it"