Why would be the amount Marie Curie postdoctoral fellowships in arithmetic drastically decrease than in other subjects? The sentence given by memrise is correct, Because the implied topic is "ustedes." Consider the case where a waiter was asking a group of patrons at a restaurant. I'm assuming your confusion https://financefeeds.com/tech-tokenomics-and-trajectory-3-best-altcoins-to-buy-for-the-next-bull-run/