All the books donated by the students from urban schools are said ______ to the students in rural areas the other dayA.to be sentB.being sentC.having been sentD.to have been sent
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D解析试题分析：考查非谓语动词。从语法可知， be said 后面要接“不定式”，故排除B 项和 C 项，同时语意表示“捐的书几天前已被送往农村学生的手中了”，且send 和books 之间为动宾关系，故应用动词不定式的完成式的被动语态。