GRE Sample Test 2 Verbal Reasoning 2

The first two blanks are related, but there isn’t a strong clue for either one in the first part, so start with the third blank. Since the motif is tiresome, the third blank must mean something close to “repetitive.”
Redundancy matches this. At the end of the paragraph, each character is bribed…into giving up…beliefs. So the first two blanks must mean “bribable.” Corruptibility in the first blank and venal in the second both match this.