by the advances in technology many farmers have set up wind farms on their landA. Being

问题补充：

by the advances in technology, many farmers have set up wind farms on their land．

A. Being encouraged

B. Encouraging

C. Having encouraged

D. Encouraged

答案：

A. Being encouraged

B. Encouraging

C. Having encouraged

(答案→)D. Encouraged

解析：分词做状语时，如句中主语是分词动作的执行者，用现在分词主动式；是承受者则用过去分词或现在分词被动式。过去分词表示“状态”，而being done则表示正在发生的“动作”。本题中，农民们处于“受到鼓舞”的心理状态下，从而set up wind farms，是encourage的承受者。故D项正确。