1. It's very generous of you to offer to pay! - _________ A. I'm glad you like it. B. Thanks a million. C. That was the least I could do. D. You can say that again 2. Has an announcement been made about the eight o'clock flight ... being unemployed. C. There have been new types of tourism, and tourists have become more responsible. D. Ecotourism is not always beneficial to the local people.