正确答案：AD
解析：
Answers: (A), (D)

It is tempting to choose (C) or (F). Remember though, that the narrator is "grumbling..." as he "braces himself..." This implies inaction on his part. He is preparing himself for a tough, world, not reacting against hit.

(A) and (D) fit the context nicely. 'Saturnine' means morose and gloomy. Again, there is ample context to support this reaction ("perceived injustices...").