摘要： by a greater demand for vegetables.farmers have built more green houses. A.Driven B.Being driven C.To drive D.Having driven 答案 A 解析 本题考查非谓语动词.句意为:受对于蔬菜的更大量需求的驱使.农民们建了更多的暖棚.空格处为句子的状语.其逻辑主语为farmers.与drive之间存在被动关系.故用被动形式.

网址：http://m.1010jiajiao.com/timu_id_3859307[举报]