The world’ first telephone booth was built in 1883 by Thomas Watson, an assistant of the famous Alexander Graham Bell. It was an elegant one, with screened windows and a desk with pen and ink. By the turn of the _____27_____, hundreds of companies were producing phone booths. _____28_____ these public coin-operated booths first appeared, many people wondered whether callers would be willing to make private calls on public streets. The answer was obviously yes, and phone booths became a common _____29_____ in the city. In the past few decades, telephone booths in North America have become _____30_____ private as their doors have generally been removed to allow _____31_____ by users in wheelchairs. But someone recently had a humorous thought: why not bring back the old booths with their phones removed, and encourage loud-talking cell phone users to step inside them to make their calls? 【題組】30. (A) so (B) less (C) much (D) more