He is only too ready to help others, seldom, _____, refusing them when they turn to him. A. if not B...
2022-12-06 00:42:58 45次 2013-2014学年黑龙江双鸭山市高二上学期期中考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
He is only too ready to help others, seldom, _____,
refusing them when they turn to him.
A. if not B.
if ever C. if
any D. if so
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