Many questions at the meeting but he answered none.A. came up B. were risen C. raised D.

问题补充：

Many questions at the meeting, but he answered none.

A. came up

B. were risen

C. raised

D. asked

答案：

(答案→)A. came up

B. were risen

C. raised

D. asked

解析：短语：come up被提出，本身就是被动形式，物被动语态，句意：许多问题在会议上被提出来，但是他一个也没回答。所以选A。