no one knows whether his story is true or not,该反义疑问句
问题描述：
no one knows whether his story is true or not,该反义疑问句
答
is he?
答
No one knows whether his story is true or not, do they? (does he?)
主语已带有否定意思，动词为knows，理当用do / does.
陈述部分主语是不定代词everybody, anyone, somebody, nobody, no one等，疑问部分常用复数they，有时也用单数he。
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答
does they
答
No one knows whether his story is true or not, is there?
答
加doesn't it
答
前面因为出现了否定词no
所以后面要用肯定 does he
one 的对应为he（he可以做人翻译） 注意不用she