选择题Up to now,the program(had saved)thousands of children who would otherwise have died.

题目

选择题Up to now,the program(had saved)thousands of children who would otherwise have died.
Up to now,the program______thousands of children who would otherwise have died.
C.had saved
D.has saved
正确答案C
为什么?

答案

这里是虚拟语气的固定搭配.句子中：主语+had done ,主语+should/would/could/might+have done,表示与过去事实相反的情况,这个项目拯救了数千儿童,不然他们将会丧命.（事实是没丧命）