They will start their project at helping the poor children to be educated in China＇s west.

问题补充：

They will start their project at helping the poor children to be educated in China＇s west.

A. aims

B. aiming

C. being aimed

D. aimed

答案：

A. aims

(答案→)B. aiming

C. being aimed

D. aimed

解析：考查分词做定语。本题中的动词aim与名词their project构成逻辑上的主动关系，故使用现在分词短语做定语来修饰前面的名词。句意：他们将要开始一个旨在与帮助中国西部的孩子接受教育的工程。故B正确。