When did the man see Mr. Young?

21.
W: Have you seen Mr. Young lately?
M: No, I haven’ t seen him since the week before last.
   22.
M: Hello,Mary. Why are you standing here in the cold wind?
W: I’ m waiting for a bus.
   23.
M: Are you from England?
W: No, I’ m from America.
   24.
M: Can I help you, Madam?
W: Yes, I like this blue dress. How much is it?
   25.
W: What’s the matter, John?
M: My TV set doesn’ t work. I have to get it fixed.