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ZR: Was it easy to design? S: No. It took many working models before Mr Dyson was satisfied. ZR: How long did it take him? S: I’m not sure. But I do know that inventing a new carpet cleaner took five years before he was happy with it. ZR: Wow! I didn’t realize that it took that long! S: And of course he had to apply for patents for all of the new parts he’d designed. You must do that to protect your ideas. ZR: Has that been a problem? S: Well, in the early years, James Dyson found that a large pany making carpet cleaners in America was copying his ideas. He had to go to court to protect his invention. ZR: Did he win? S: Yes, in the end the pany had to pay us a lot of money. ZR: What new ideas does James Dyson have? S: I’m sorry but you’ll just have to wait and see! ZR: Thank you very much and I’m afraid I shall have to ring off now. Goodbye. S: Goodbye. WorkbookListening WHICH ONE SHOULD I CHOOSE? Ruth Bacon (RB) is asking her friend, Zhang Jie (ZJ), for advice. Listen again and fill in the blanks. RB: Hello, is that Zhang Jie? This is Ruth. I’m thinking of buying a new mobile phone. What do you suggest? ZJ: Hello Ruth. I’m happy to help. It’s lucky you could get thr