Passage One Questions 11 to 13 are based on the passage you have just heard.

单项选择题A．Portraits as clues to our pastB．Prominent families in recent historyC．Twentieth-century photographersD．A new generation of artists

单项选择题A．She doesn’t have anything to doB．The man is wrong about the timeC．The flight is supposed to be two hour’s longD．They should call back in two hours