单项选择题
Conversation 2 Questions 8 to 10 are based on the conversation you’ve just heard.
A．Eight hours. B．Two hours. C．An hour and a half. D．Half an hour.
A．he was to present the park with a diploma for its achievements B．he was concerned about how the park was being run C．it was the only national park of its kind in Europe D．it was the only park which had ever received a diploma from the Council