4 Fill in the blanks with the words given below. Chang the form where necessary. Each word can be used only once.attendantbeautifyclassifyhorrifyinformantnoticepollutantresultantsolidify1 The students will learn to____rocks by shape and size.2 Many flowers and plants are grown to____the public areas in the neighborhood.3 Sending exchange students can____the friendship between our country and other countries.4 Last week I was____by the publisher that my article was accepted and would be published next month.5 The chemical factory that produced serious____has been shut down by the local government.6 We were____to discover that the basement of our house was flooded after the heavy rain.7 The growing economy and its____development in other areas have greatly motivated people to work harder.8 I enjoyed flying and meeting different people, so I wanted to become a flight____.9 Some journalists have long-term relationships with their news____from whom they obtain first-hand information.