单项选择题
A.She was unable to read the story again. B.She thought the story would be difficult. C.The story wasn’t like what she had expected. D.The story was the same as usual.
A.Liverpool to New York B.New York to Liverpool C.Baltimore to Liverpool D.Liverpool to Baltimore
A.explains why American cities are changing B.is a description of cities C.shows that American cities have many problems D.says: "American cities contain the very best aspects of a society"