So far most of the work by others it’s your turn to do the rest of it. A. has finishedB

问题补充：

So far, most of the work by others, it’s your turn to do the rest of it.

A. has finished

B. finished

C. has been finished

D. is finished

答案：

A. has finished

B. finished

(答案→)C. has been finished

D. is finished

解析：句意：到目前为止，大部分工作已经由别人完成了，该你做其余部分了。结合语境可知本句描述的是现在已经完成的动作，故用现在完成时态，主语是动作对象，故用被动语态。选C。