He is ready to help others, seldom, refusing them when they turn to him.
A. if never
B. if ever
C. if not
D. if any
网友回答
A. if never
(答案→)B. if ever
C. if not
D. if any
解析：考查固定结构。If ever=if she has ever refused to help others.句意：他很乐于助人，如果他曾经有过拒绝帮助别人，那也是很少的。