题目

Nobody knows how he was murdered, but _______ people behind the scenes can guess why.   A. a great deal of    B. a good many    C. a good amount of    D. a great many of 答案：B 解析: 句意: 谁也不知道他是怎样遇害的，但不少知道内情的人却能猜测出他遭受杀害的内中缘由。people为复数名词，所以只能选能接复数名词a good many，B项为正确答案。a great many of后接的名词必须是限定的复数名词；A、C后只能接不可数名词。

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