当谓语由实义动词充当,主语不是第三人称单数时,句子结构为:主语+动词原形+其它 否定式为:主语+don't+动词原形+其它 疑问句为:Do+主语+动词原形+其它?e.g.We speak Chinese.Do you speak Chinese?They don't speak Chinese.当主语是第三人称单数时:句子结构为 主语+动词(词尾加s或es)+其它.否定式为:主语+doesn't+动词原形+其它.疑问句式:Does+主语+动词原形+其它?
你好 用 Does