1. (2022·上城模拟) 听下面一段对话，回答问题。

1. （1） What are the two speakers mainly talking about?

   A . The environment. B . The fair. C . The science.
3. （2） Who made the great works?

   A . University students. B . Museum workers. C . University teachers.
5. （3） What was the model plane made of?

   A . Leaves and glass. B . Wood and glass. C . Wood and leaves.