摘要：285] If the south had won the war, what is now the United States divided into several countries. [译文] 如果南方赢得这场战争.现在的美国就一定会分裂成为好几个国家. A. will be B. might have been C. should be D. must have been [答案及简析] D. 虚拟语气.与过去事实相反用过去完成时态.

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