A: What is you hobby, Bob?

B: My hobby is collecting coins.

A: When did you start doing your hobby?

B: I began doing it when I was in Grade 3.

A: How much time do you spend on your hobby？

B: Not too much. (I spent only a little time on it.)

A: What kinds of things have you learnt from your hobby?

B: Well,I learn about the history of the world, the stories behind certain monies, and the value of the coins you are collecting.