I have battled with my over whether I should actually send this letter.
A. awareness
B. consciousness
C. conscience
D. mind
网友回答
A. awareness
B. consciousness
(答案→)C. conscience
D. mind
解析：awareness知道,晓得;consciousness意识,知觉; conscience良心,道德心;mind 头脑,智力,意见。battle with my conscience 与良心斗争。