Answer:
¿Recibiste tu regalo de cumpleaños? sí, esta mañana. ¿Completó María su trabajo? si, hoy lo termino. ¿Llegaron tus compañeros temprano a clase?no, llegaron tarde. ¿Empezó el curso hoy? no, comenzo ayer. ¿Comieron ustedes en la cafetería de la escuela? no, comimos en un restaurante.
Well First of all Tener que means Must
so the list will be maybe like this If I understood the Question correctly
<span>Tener que tener pastel para la fiesta = must have cake for the party
Tener que </span><span>haber adivinar para la fiesta con regalos= must have guess with gifts
</span>Tener que <span>tener favores de partido = Must have party favors
hopefully I understood the question correctly and I was a help to you </span>
pedro ES ecuatoriano .......
B. Fueron
Fui is speaking in terms to yourself
Fueron is the best choice because you are talking about what your grandparents did or were they went, in this case you can almost assume the grandparents were doctors there for B. Is the appropriate response.