I soon found that the work I was doing had already been done by someone else. I was wast

问题补充：

I soon found that the work I was doing had already been done by someone else. , I was wasting my time.

A. In other words

B. In a word

C. As a result

D. In addition

答案：

(答案→)A. In other words

B. In a word

C. As a result

D. In addition

解析：考察词组，in other words 换句话说 in a word总之 as a result结果 in addition除此之外

句意为，我很快发现我在做的工作已经被某个人做过了。换句话说，我在浪费时间