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His speech was so (PERSUADE) that everyone believed him. There has been a huge (DEVELOP) in space technology over the last decade. This restaurant is very (UNPOPULAR) ; you should book a table in advance. We were surprised by her (WLLING) to speak in front of such a big audience. The company introduced new rules to improve work (SAFE) . He is very (PATIENT) ; he never waits for anyone and always wants things done quickly. The film was a (COMPLETELY) failure and nobody went to see it. More and more people are becoming aware of (ENVIRONMENT) problems. The new phone is (HIGH) functional; it can replace many other devices. I couldn't believe his (SERIOUS) when he told that silly joke.