In the major cities of industrialized countries at the end of the nineteenth century, important public places such as theaters, restaurants, shops, and banks had installed electric lighting, but electricity was in less than one percent of homes, where lighting was still provided mainly by candles or gas.
(A) electricity was in less than one percent of homes, where lighting was still
(B) electricity was in less than one percent of homes and lighting still
(C) there were less than one percent of homes with electricity, where lighting was still being
(D) there was less than one percent of homes that had electricity, having lighting that was still
(E) less than one percent of homes had electricity, where lighting had still been
答案选A，
C的解释中，where语法上就近修饰electricity,导致逻辑错误。
答案的意思是这里的where作关系副词引导从句，那么如何区分是作定从修饰前一个名词，还是做状从修饰整个句子？
通过语义区分？ 那么形式或用法上呢？where引导定从和状从有什么不同，又如何区别呢？
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