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.

(A) that the elephant that gave rides to children at the Whipsnade Zoo was earning

(B) that the elephant, giving rides to children at the Whipsnade Zoo, had been earning

(C) that there was an elephant giving rides to children at the Whipsnade Zoo, and it earned

(D) the elephant that gave rides to children at the Whipsnade Zoo and was earning

(E) the elephant giving rides to children at the Whipsnade Zoo and that it earned

请问这道题为什么选A不选B呢，B的时态为什么不对呢？我的理解是elephant earning是在what she then earned 之前发生的，所以就过去完成时~~~

LS两位不能用这样的依据做题，并且实际情况是很多题目的过去完成时都是正确的，无论是大全还是GWD都能找到很多例子。

这题LZ需要去加强的是定语从句和现在分词后置修饰的区别，还有完成进行时的用法这两个语法点。版上有很多详细的介绍，找一下，解决了考试再遇到就没问题了。