Explanation:

Swung- shift or cause to shift from one opinion, mood, or state of affairs to another. Oscillate means vary or fluctuate between two states, limits, opinions, etc. Hence, they are synonyms of each other. Sedate means calm, dignified, and unhurried. Pallid means (of a person's face) pale, typically because of poor health. Indignant means feeling or showing anger or annoyance at what is perceived as unfair treatment. Encroach means intrude on (a person's territory, rights, personal life, etc.)