He got well-prepared for the job interview, for he couldn't risk __________the good opportunity.
A、quitting
B、failing
C、losing
D、resigning
【正确答案】：C
【题目解析】：risk doing sth的意思是“冒险做某事”，lose the opportunity表示“丢掉了机会”。原句的意思是“他为工作面试做好了准备，因为他不能丢掉这个好机会”。因此我们选择C.losing。
