________ by the advances in technology, many farmers have set up wind farms on t

题型：不详难度：来源：

________ by the advances in technology, many farmers have set up wind farms on their land. (2009天津卷)

A．Being encouraged

B．Encouraging

C．Encouraged

D．Having encouraged

答案

C。

解析

根据句意和空格后的介词by短语可知，空格处应填一个表被动意义的选项，故可排除B和D；而选项A为现在分词的被动式，除表示被动外还表示动作在进行，与句意不符，故也排除。