请教PREP2-49

49.   (27096-!-item-!-188;#058&003405)

Since 1990 the global economy has grown more than it did during the 10,000 years from the beginning of agriculture to 1950.

(A) Since 1990 the global economy has grown more than it did during the 10,000 years from the beginning of agriculture

(B) Since 1990 the growth of the global economy has been more than that during 10,000 years, from when agriculture began

(C) The growth of the global economy since 1990 exceeds that which had been for 10,000 years from the beginning of agriculture

(D) The growth of the global economy since 1990 exceeds what it has been for 10,000 years, from when agriculture began

(E) The growth of the global economy since 1990 exceeds what it did for the 10,000 years from the beginning of agriculture

解释没有提到C,D,E选项应该用现在完成时的问题。我想问一下，为什么exceed后要用 过去时而不是完成时呢？

谢谢谢谢！！！很小的一个问题，望NN解答

没看懂LZ的问题。。。。

since加时间，句子用完成时态~

谢谢enrique1313

笔记中说D选项不能用完成时应该用过去时，为什么呢？我觉得就应该用完成时啊，谢谢