—________
Sam: Who are they, Daming?
Daming: They are my grandparents.
Sam: They weren't old then.
Daming: Yes, they were young.
Sam: How old were they then?
Daming: They were 26 years old.
Sam: Your grandma's hair was long.
Daming: Yes, but now her hair is short.
Sam: Your grandpa was thin then.
Daming: Yes, but he is fat now.
Sam: Oh, I see.
Daming: Haha…