问题补充：
Because Edgar was convinced of the accuracy of this fact,hehis opinion.
A. struck at
B. strove for
C. stuck to
D. stood for
答案：
A. struck at
B. strove for
(答案→)C. stuck to
D. stood for
解析：因为埃德深信这一事实正确，他坚持他的意见。stick to“坚持，信守”，strike at “攻击，抨击”，strive for“争取，力求”，stand for“主张，支持，意味着”。
