1. Pinta
2. Comemos
3. Comen
I believe that it would be B (reloj) since it is talking about how there is a window, a door and then a clock in a classroom.
It is also giving you the masculine singular form indicating that it can only be reloj.
Answer:
Le agradecieron su contribución de tiempo y dinero. Hizo una contribución importante al debate. Como alcalde, hizo muchas contribuciones positivas al crecimiento de la ciudad.
Explanation:
In english v
They thanked him for his contribution of time and money. He made an important contribution to the debate. As mayor, he made many positive contributions to the growth of the city.