A: Lily, have a look at these photos. I took them in my home town last week.
A: Yes. My home town looks more beautiful than before.
B: I remember a lake used to be at the foot of" the hill. Isn't it there?
B: Why? What happened?
A: Well, my home town used to be a small village. More and more people move to live here.
A: They used to work in the field, but now they work in the factory.
A: Yes, you're right.
A. Yes, it is.