Question

he is only too ready to help others , seldom , ____,refusing them when they turn to him. A if ne...

he is only too ready to help others , seldom , ____,refusing them when they turn to him.
A if never B if ever C if not D if any
答案知道 但不理解

Answer 1

B if ever 的意思是：如果曾经有过（一个让步的状语）
他随时乐于助人，很少，如果有过的话，拒绝他人的求助。
其它的答案就说不通了。