1. 听材料，回答题。

1. （1） What does the speaker talk about?

   A . A photo exhibition. B . A hill-climbing competition. C . An environmental project.
3. （2） Why is "one item" required?

   A . To raise awareness. B . To decrease the cost. C . To save physical strength.
5. （3） For what reason should the hill walkers take a small bag?

   A . To pack more items. B . To avoid direct contact with litter. C . To carry some takeaway food.
7. （4） How will people promote the campaign?

   A . Posting a photo of one litter item. B . Showing appreciation for the hills. C . Expressing thanks to Brendan Roche.