Answer: There are actually two correct options (I'm a native speaker). Son and eran
Explanation:
Son is in present and eran is in past
*Los mandatos informales
-"Escribe (tu) la tarea"
-"Compra (tu) los libros"
*Los mandatos formales
-"Haga (Usted) la tarea"
-"Compren (Ustedes) los libros"
Ya tengo el regalo perfecto para mi hermana. Lo compré en el mercardo de artesanías
The correct translation of these sentences is:
1. Mrs. Johnson is diabetic and can't eat sugar.
2. The Lords Petit are vegetarians.
3. Mr. Smith is allergic to chocolate.
4. The adorable Mr. Smith's daughter is only four years old. She likes to eat vegetables and fruits.
5. Miss Jackson is on a diet