[求助][原创]请教一道PREP语法，答案有两种说法？

nina_0822

这道题在PREP里出现两次，但一次给的答案是D一次是A?请教究竟应该是哪个？

In addition to her work on the Miocene hominid fossil record, Mary Leakey contributed to archaeology with her discovery of the earliest direct evidence of hominid activity and painstakingly documenting East African cave paintings.

 

 

(A) Leakey contributed to archaeology with her discovery of the earliest direct evidence of hominid activity and painstakingly documenting

(B) Leakey contributed to archaeology by her discovery of the earliest direct evidence of hominid activity and by painstakingly documenting

(C) Leakey was a contributor to archaeology with her discovery of the earliest direct evidence of hominid activity and with her painstaking documentation of

(D) Leakey's contributions to archaeology include her discovery of the earliest direct evidence of hominid activity and her painstaking documentation of

(E) Leakey's contributions to archaeology include discovering the earliest direct evidence of hominid activity and painstaking documentation of

[此贴子已经被作者于2008-4-28 22:38:02编辑过]

nina_0822

恍然大悟，多谢两位～～