When you come across your host eating, what is it considered polite to do? refuse and say "que aproveche" join them for the meal eat from the host's plate or leave

If the pants costs $233 how would you respond to the question ¿cuánto cuestan los pantalones?

Which of these words best completes the first sentence? el clima de invierno es y cae nieve. por eso es posible ir a esquiar. a. nieve b. frío c. templado d. caliente

Anoche yo porque tengo un examen muy dificil hoy