Prepositions Choose the correct preposition. 1 They ate some poisonous mushrooms in/by mistake. 2 Loggerhead turtles mistake the bags to/for food. 3 He's responsible for/in patrolling the beach. 4 They worked hard to raise money for/of charity. 5 Greg's schools are proof of/for what people can really do. 6 Haiti suffers of/from hurricanes.