Extracto de la Unidad 21
El Suéter Verde Perdido
A I'm looking for my green sweater, Pilar. Halle yoÚ seen it? B Your green sweater? Mmm, let me see. Ves, you lent it to
	David.
A David? Never. He doesn't wear green, he hates i1. He's
	always in blue or gray.
B Well, then I don't know where it is. When did you wear it
	last?
	A Good question. Let me think. Well, I think I wore it to class
	yesterday afternoon. The weather changed suddenly and I
	felt cold.
B That's right. I remember now. You were wearing it when you
	got to Franco's.
A Yeah! It was so hot in the restaurant that I took it off. I must
	have left it there.
B Give them a call and see if they've found i1.