Students taking the course to finish their homework with the help of computers．A. are enco

问题补充：

Students taking the course to finish their homework with the help of computers．

A. are encouraged

B. have encouraged

C. are encouraging

D. had been encouraged

答案：

(答案→)A. are encouraged

B. have encouraged

C. are encouraging

D. had been encouraged

解析：考查被动语态。taking the course是现在分词答语作后置定语，Students和encourage是动宾关系，应该用被动语态，排除B、C；句中没出现过去的动作，不能用过去完成时。故选A。