Answer:
happiness : misery :: safety : peril
giggle : sob :: smile : grimace
contest : prize :: work : compensation
nervous : insecure :: gullibility : credulity
abrupt : sudden :: inevitability : fate
regret : disappointment :: acceptance : resignation
Step-by-step explanation:
7: Misery is antonym of happiness, similarly peril is antonym safety.
8: Sob is antonym of giggle, and analogically grimace is antonym of smile.
9: Prize is effect/reward of a cause (contest), similarly effect/reward of work is compensation.
10: Insecure is synonym of nervous, similarly credulity is synonym of gullibility.
11: Sudden is synonym of abrupt, similarly fate is synonym of inevitability.
12: Disappointment is effect of regret, similarly resignation is effect of acceptance.