When help, one often says “Thank you”. or “It’s kind of you”.
A. offering
B. to offer
C. to be offered
D. offered
网友回答
A. offering
B. to offer
C. to be offered
(答案→)D. offered
解析：句意:当一个人被帮助时，他经常说“谢谢你”或“你真是太好了”。动词offer与主语one之间是被动关系，因此此处用过去分词offered表示被动。故选D 。