问题补充：
Many questions at the news conference, but he answered none.
A. came in
B. came off
C. came about
D. came up
答案：
A. came in
B. came off
C. came about
(答案→)D. came up
解析：句意：新闻发布会上有许多问题被提出，但是他一个也没有回答。came in 进来；came off 成功，脱落；came about产生，改变方向；came up被提出。故选D。
