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The technological advances made it possible for the middle classes to enjoy what had once been ___only to the very rich.
The party, ___ I was the guest of honor, was extremely enjoyable.
Companies has been given licenses to operate in Shanghai Free Trade Zone, which ___28.78 square kilometers
It is hard to imaginemore embarrassing occasion when you fail to understandsingle word said by someone.
— What’s the noise? It sounds as if it comes from upstairs. — ____ . It must be the window-cleaner working, next door.