oughtto反义疑问句【篇一：oughtto反义疑问句】eachersoughttobehonoured,oughtntthey?【篇二：oughtto反义疑问句】含有oughtto的反意疑问句,陈述部分是肯定的,疑问部分用shouldnt/oughtnt+主语.例如：科教兴国
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