3.A:Excuse me.(71)C
B:Yes,I do.I have a girl pen pal.
A:(72)E
B:She is from Sydney.
A:Where is Sydney?
B:It's a city in Australia.
A:(73)F
B:Yes.Koalas are from Australia.They sleep in the day and get up to eat leaves at night.
A:That sounds interesting.And (74)D
B:It's warn in winter and cool in summer.
A:(75)A
B:You're welcome.
A.Thank you for answering my questions.
B.Where are koalas from?
C.Do you have a pen pal?
D.What's the weather like in Australia?
E.Where is she from?
F.Does Australia have any famous (出名的) animals?
G.What about you?