What has more energy, a candy bar or green salad?

Choose the correct answer. the phrase "por cierto" means: by certain for sure over there for now does anyone know the answer to this question?

The teacher didn't explain this at all and i don't understand this

Complete a conversation between members of the spanish club by choosing the appropriate question for the answer below. hoy es martes. ? cuándo es tu cumplea? os? ? cómo te llamas? ? qué día es hoy? ? cuál es la fecha de hoy?