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题库 / Prep2007E1-SC-163
The British sociologist and activist Barbara Wootton once noted as a humorous example of income maldistribution that the elephant that gave rides to children at the Whipsnade Zoo was earning annually exactly what she then earned as director of adult education for London.
that the elephant that gave rides to children at the Whipsnade Zoo was earning
that the elephant, giving rides to children at the Whipsnade Zoo, had been earning
that there was an elephant giving rides to children at the Whipsnade Zoo, and it earned
the elephant that gave rides to children at the Whipsnade Zoo and was earning
the elephant giving rides to children at the Whipsnade Zoo and that it earned
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this doesn't make sense -- "the elephant", alone, would not be a valid reference, and we need to be told that it was specifically the elephant that gave rides to the children (and not some other elephant). for both of these reasons, the modifier must be an essential (not set off by commas) modifier.
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