Completar frases Eco-Friendly Verb ChallengeVersión en línea Fill in the blanks with the correct past simple forms of irregular verbs related to eco-friendly studies. por Angelina Polius 1 said found put felt took thought did said made meant did had felt Prinzing [ say ] that helping the planet can be fun . The study [ find ] that eco - friendly people { feel ] happier . People ( feel ) better when they good things for the planet . Each study ( take ) place over a few days . Some people ( think ) eco - living [ mean ] giving up their comfort . The students ( do ) different types of activities . One group ( have ) a normal day . Participants were ( put ) into three groups . The study ( make ) people feel more positive . People ( say ) they would try eco - friendly habits again .