The cartoons made by the artists sell best, but several years ago no one could imagine how great a role he _____

in the field. [ ]

A. was playing

B. was to play

C. had played

D. played

国家的( )是国家总体规划的基本形式。

A．当年规划

B．一年规划

C．三年规划

D．五年规划