The computer was used in teaching . As a result not only but students became more inte

问题补充：

The computer was used in teaching . As a result, not only , but students became more interested in the lessons.

A. saved was teachers’ energy

B. was teachers’ energy saved

C. teachers’ energy was saved

D. was saved teachers’ energy

答案：

A. saved was teachers’ energy

(答案→)B. was teachers’ energy saved

C. teachers’ energy was saved

D. was saved teachers’ energy

解析：句意为：电脑在教学上是有用的，他不仅可以节省老师的精力，而且学生对课也会感兴趣。当not only 位于句首时，后面的句子要使用半倒装，所以就排除了A与C。半倒装时只有情态动词，助动词，系动词等与主语交换位置，故答案应为B。