单项选择题

Advertising media like direct mail, radio, television and newspapers ______ to increase the sales of industrial products.

A．have been used
B．will be used
C．is being used
D．has been used
<上一题 目录 下一题>
热门 试题

单项选择题
We will be losing money this year unless that new economic plan of yours ______ miracle.
A．is working
B．works
C．will be working
D．worked
相关试题