You didn't send the invitation and that's why paula didn't come(if) => Paula...........you had sent the invitation 20 Mass communication improved when they introduced the postal service. introduction Mass communication improved ……. the postal service. 21 It’s a waste of time looking at that website. point There ….. looking at that website. 22 They are going to hold the interview in the Kremlin. place The interview ….. in the Kremlin. 23 Did you describe the burglar to the police? description Did you …. the burglar to the police? 24 I believe that people will live on other planets in the future. view It …..that people will live on other planets in the future. 25 Could you connect me to the editorial department, please? through Could you ….. to the editorial department, please? 26 You didn’t even try to answer the question. attempt You didn’t even …. answering the question.