They are very grateful ___ us ___them so much help.A to ,to give B of ,to giveC for ,give D to ,for giving

问题描述:

They are very grateful ___ us ___them so much help.
A to ,to give
B of ,to give
C for ,give
D to ,for giving

选择D 他们对我们所给与的诸多帮助而感到感激 to表示目的感激对象 for表示原因 感激的理由

选择D答案,翻译为:他们非常感激我们给予他们这么多的帮助。

我觉得是D