Varios idiomas en esta clínica. incorrect question 8 with 1 blank se comen you answered se comense comenincorrect or extra word comida sana en este restaurante. incorrectquestion 9 with 1 blank se prohibe you answered se prohibense prohibenincorrect or extra word fumar en la sala de espera. incorrectquestion 10 with 1 blank se necesitan you answered se necesitanse necesitanincorrect or extra word ejercicio para estar saludable. incorrectquestion 11 with 1 blank se necesita you answered se necesitanse necesitanincorrect or extra word operaciones de rodilla. correctquestion 12 with 1 blankyou answered se necesitan correct answer isse necesitan más doctores en este hospital.

In Spanish, verbs in plural end in "-an" or "-en" and when they are in singular they end in "-a" or "-e". The context is taken from the complement of the sentence.

Explanation:

Se comen comida sana en este restaurante is incorrect because comida sana, is singular, therefore the correct sentence is: Se come comida sana en este restaurante.

Se prohiben fumar en la sala de espera is incorrect because fumar en la sala is singular, therefore the correct sentence is: Se prohibe fumar en la sala de espera.

Se necesitan ejercicio para estar saludable is incorrect because ejercicio is singular, therefore the correct sentence is: Se necesita ejercicio para estar saludable.

Se necesitan operaciones de rodilla is correct, as operaciones is plural.

Se necesitan más doctores en este hospital is correct, as doctores is plural.

probably orange juice since in a restaurant they give you a drink first.