The answer is: [C]: "puso" .
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Answer:
Nosotros volvemos a la escuela.
Explanation:
With the form of nosotros, the word doesn't change.
Tu because If you put Mi or mis son rojos it says my are red which dosen't really make sense. Since you put tu in front of son (plual) it would be they are red.
Una foto del chapter 30 para ver cómo contestar tu pregunta
1. Ser
2. Estar
3. Ser
4. Estar
5. Ser
6. Ser
7. Ser
8. Ser
9. Estar
10. Estar
11. Estar
12. Ser