Great attention must be devoted agriculture(农业) especially in China population is the

问题补充：

Great attention must be devoted agriculture(农业), especially in China,

population is the largest in the world.

A. to be developed; whose

B. to develop; which

C. to developing; whose

D. to developing; which

答案：

A. to be developed; whose

B. to develop; which

(答案→)C. to developing; whose

D. to developing; which

解析：devote … to ，to为介词，因此后加doing；第二空考查定语从句，China作population的定语，因此用whose引导。