A) Sabían
They KNEW what they were doing.
I believe it's Voy, because that is the "I" or "Yo" form of the word "ir", meaning "to go".
Where are you going to eat?
(I am going to) The restaurant.
¿Adónde vas para comer?
Voy al restaurante.
<h2>Answer:</h2>
1. DOCTORA ¿Qué síntomas tiene?
JOSÉ LUIS NOTA Tengo tos y me duele la cabeza.
2. DOCTORA ¿Le dio fiebre ayer?
3. JOSÉ LUIS Sí, mi esposa me tomó la temperatura.
4. DOCTORA ¿Está muy congestionado?
5. JOSÉ LUIS Sí, y también me duele la garganta.
6. DOCTORA Es una infección de garganta.
7. JOSÉ LUIS ¿Tengo que tomar un antibiótico?
8. DOCTORA Sí, ahora se lo voy a recetar.
<h2>Explanation:</h2>
Here we have a dialogue between the Doctor and Jose Luis, the patient. We must choose the correct choices to get a logical conversation. Since the Doctor starts the conversation, the more logical subject of conversation is about the symptoms of José Luis (símtomas de José Luis). So he starts talking about his cough and sore throat. He also talks about his fever and finally the doctor gives him a medical prescription.
Vamos
we are going to a have a class about conquistadors.