4GRAMMAR Non-defining relative clauses 1 Viral videos began in the 1990s. Look at sentences 1-8 about videos. Add non-defining relative clauses A-H to each sentence. 2 invisible Children became one of the most viral videos in history with 34 million views. A which was tounded in 2005 B who recorded Justin Bieber's song C which was made in 2012 D which spend millions on advertising E which are becoming more and more popular F who started his career through YouTube videos G which is one of the world's best-known brands H who sometimes need new ideas for their lessons 3 YouTube has made viral videos popular, 4 Teachers often find short videos very useful, 5 One student became very depressed after his video went viral. 6 Companies now produce more and more videos. 7 Coca-Cola has produced some very funny videos. 8 The pop star has just made a new album, which has sold millions. 5 LISTENING What is playing tonight at the cinema? a) Read the questions. Then listen to part 1. Which numbers do you have to press … … to hear which films you can see? films