PartIIIVocabularyandStructureDirections:Thereareanumberofincompletesentencesinthispart.ForeachsentencetherearefourchoicesmarkedA),B),C)andD).ChoosetheONEthatbestcompletesthesentence.22.Manyparents________thattheyoftenfounditsimplyimpossibletocommunicatewiththeirchildren.
