1. The World Health ____________________ is an international one. (organize) 2. Children need to have a good __________________. (educate) 3. We should save _________________ resources. (nature) 4. Because of the ____________ of her teachers, she decided to study law. (encourage) 5. He should say a few words of _________________(explain) 6.they collected 1000________for the petition(sign) 7.we should seve_______resources(nature) 8.the first world________festival was held in prague in 1947(young) 9.fishing is an_______my father enjoy best(act) giúp mình vs có giải thích nha