Nothing clear about the meeting.A. has madeB. has been madeC. has doneD. has been done

问题补充：

Nothing clear about the meeting.

A. has made

B. has been made

C. has done

D. has been done

答案：

A. has made

(答案→)B. has been made

C. has done

D. has been done

解析：根据句意，这里用完成时的被动语态。