7. According to the passage when was the Olmsted Report officially accepted as the master plan for the Seattle public park system﹖ （细节）
A 1903 B 1907 C 1909 D 1913
8. The word "sums"in line 20 is closest in meaning to （词汇）
A problems B amounts C services D debts
9. According to the passage which of the following was most directly influenced by the Alaska-Yukon-Pacific Exposition？（理解）
A The University of Washington
B Brookline Massachusetts
C The mayor of Seattle
DThe Seattle Parks Board
