Answer:
Está.
Explanation:
Tengo tos, tengo fiebre y mi garganta __está__ roja.
Answer:
Chihuahuas are shaking because there cold or afraid they will hide under blankets to feel safe and comfort
D: ¿Te gusta vender los collares?
Gustar conjugated is still one word so it cannot be "gust a"
A verb ("vender") is singular so you cannot use "gustan"
A verb after gustar has to be infinitive
so the correct answer is ¿Te gusta vender los collares?