There was a very interesting remark in a book by an Englishman that I read recently he thought was the reason for this American characteristic.
A. to give that
B. to give what
C. giving that
D. giving what
网友回答
A. to give that
B. to give what
C. giving that
(答案→)D. giving what
解析：该句是复合句，主干部分为there was a very interesting remark in a book，介词短语by an Englishman和定语从句that I read recently都修饰a book，分词结构giving...在句中作伴随状语，what he thought was a reason for...作giving的宾语，what he thought又作这个宾语从句的主语。