他们还没吃午饭，是吗？
They haven't had lunch yet, have they?
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They英 /ðeɪ/|美 /ðeɪ/
解释
have 是现在完成时的助动词，与主句的 haven't 对应构成肯定反意问句。they 是代词，与主句主语一致。这种结构用于对否定完成时的陈述进行求证或补充确认。
They haven't had lunch yet, have they?
have 是现在完成时的助动词，与主句的 haven't 对应构成肯定反意问句。they 是代词，与主句主语一致。这种结构用于对否定完成时的陈述进行求证或补充确认。