He is ready to help others, seldom, ______ refusing them when they turn to him. A．if never B．if ever...
2023-02-07 05:25:26 199次 20102011哈尔滨六中高一下学期期中英语试题 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
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
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