she regretted_____(sell) the farm at such a low price为什么答案是having sold而不是selling
问题描述:
she regretted_____(sell) the farm at such a low price
为什么答案是having sold而不是selling
答
regret to do 是遗憾做某事
regret doing 是后悔做某事,这里她已经买了,所以用完成时.