Fred: What do you like in your spare time
Nick: （）

A. That’ s a good idea.
B. I see.
C. Travelling.
D. Not at all.
E. So do I.
F. Detective stories.
G. Just a minute.
H. Sure.

A．when and how the umbrella was invented
B．why the umbrella was so popular in Europe
C．the development of the umbrella
D．the history and use of the umbrella