Great attention must be paid education especially in the countryside.A. developB. to deve

问题补充：

Great attention must be paid education，especially in the countryside.

A. develop

B. to develop

C. to developing

D. Developing

答案：

A. develop

B. to develop

(答案→)C. to developing

D. Developing

解析：考查固定短语。固定短语pay attention to sth/doing sth注意sth/做某事；其中的to是介词，后面接动名词的形式。本题是一个被动语态，句意：要特别注意发展教育，尤其是农村地区的教育问题。故C正确。