262.Nobody heard him sing, ________?
did one
did he
didn’t they
did they
答案解析
解析：
疑问句的主语和陈述部分的主语保持一致,都用主格形式,当陈述部分的主语是 one 时,疑问句才用 one(或者 he),排除 A;题干中陈述部分的主语 nobody 为否定词,疑 问部分肯定用肯定式,排除C;陈述部分的主语是somebody,someone,everybody,everyone, nobody 等不定代词时,疑问部分的主语用 they。
相关知识点：
反义疑问句前否后肯
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