The child plained that the old man made no answer when where he lived．
A. asking
B. being asked
C. having asked
D. asked
网友回答
A. asking
B. being asked
C. having asked
(答案→)D. asked
解析：考查非谓语动词。ask的逻辑主语the child与ask之间是被动关系，故排除A、C；又因为being asked表示“正在被问”,所以D正确。