阅读下面短文，掌握其大意，然后从21~30各题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。
Many of us hold on to little resentment（怨恨）that may come from an argument, a misunderstanding or some other painful events. Stubbornly, we wait for someone else to reach out to us— 21 this is the only way we can forgive or 22 a friendship or family relationship.
