Thecomputersmadebyourcompanysellbest,butseveralyearsago...

问题详情：

The computers made by our company sell best,but several years ago no one could have imagined the role in the markets that they______.  

  playing           to play               played                     ed 

【回答】

知识点：过去将来时及其被动式

题型：选择题