※ 引述《skie48 (小鸭)》之铭言：
: 4. (24603-!-item-!-188;#058&001035)
: Nikola Tesla, the inventor of alternating current, because he was excited
: with the prospects of harnessing Niagara Falls for producing electric power,
: he predicted in the mid-1890's that electricity generated at Niagara would
: one day power the streetcars of London and the streetlights of Paris.
: (A) Nikola Tesla, the inventor of alternating current, because he was excited
: with the prospects of harnessing Niagara Falls for producing electric power,
: he
: (D) Nikola Tesla, the inventor of alternating current, excited about the
: prospects of harnessing Niagara Falls for the production of electric power and
阿，另外，忘了补一点...
原句里出现了逻辑关系“because”（因果）
这时按我个人的判断准则－－原句出现的逻辑关系若是句意上合理
尽量不要任意移除/扭曲
所以我会先判断 was excited with prospects...
跟predicted 是否是合理的因果关系