1. "They want the boots" = D. quieren las botas.Â
Quieren is short for Ellos/Ellas/Ustedes quieren, which means They want. A is incorrect because it refers to You = Vosotros. B is incorrect because it refers to third person singular - He/She/It = El/Ella/Usted. C is incorrect because it refers to We = Nosotros.
2. "Prefiero la gorra roja" = B. I prefer the red cap.
This is becaise Prefiero is short for Yo prefiero, which is the first person singular I.
3. El cadejo is B. a mythical dog.Â
It is a supernatural being in Mexican folklore.
4. B. Sawdust is used to make special carpets in Honduras. This process was introduced in 1936.Â