单项选择题
What can we learn from the lady"s comment（）
A．Most Londoners took Exercise Floodcall calmly. B．Most Londoners were frightened. C．Most Londoners became rather confused. D．Most Londoners complained about the trouble caused by Exercise Floodcall.
单项选择题 What are the speakers doing（）
单项选择题 What happened in London a few months ago（）
单项选择题 What was the main harmful effect of the pest killer DDT on bald eagles（）
