聽下面一段材料,完成1至4題.
1. Who is the speaker?
A. A tourist guide.
B. A park manager.
C. A restaurant host.
2. What is the speaker mainly talking about?
A. A well-known park.
B. A historic tree
C. A famous commander.
3. What do we know about the Washington Elm?
A. People didn't know how old it was.
B. It was much older than people had thought.
C. Washington couldn't have commanded his army under it.
4. What can we learn from what the speaker said?
A .Some historical stories are untrue.
B. The tree is growing very Well now.
C. The Washington Elm was destroyed before the celebration.