If Sanlu Group melamine to the milk,the babies too much from kidney stone.A.didn’t add; would not sufferedB.hadn’t added; wouldn’t have sufferedC.hasn’t added; wouldn’t have sufferedD.hadn’t added; would have suffered
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B解析本题考查虚拟语气。句意为“如果三鹿集团没有在牛奶中添加三聚氰胺的话，婴儿们就不会受肾结石之苦”。因为是对过去的事情进行虚拟，所以使用“If+主语+had done，主语+情态动词+have done”模式。