>>506のこたえ ran outとほぼ同じ意味のものを１つ選択 ② was completely exhausted
the gold rush changed the history of California and the whole Western United Statesと内容の一致するものを１つ選択 ④ The economy was developed by miners who stayed and changed their jobs.
本文の内容と一致しないものを２つ選択 ① Gold rush fever is dangerous illness which killed many miners. ② The California gold rush was noted for its small size at the beginning.
