[求指教]GWD24-08

24-8 The results of the company’s cost-cutting measures are evident in its profits, which increased five percent during the first three months of this year after it fell over the last two years.

(A) which increased five percent during the first three months of this year after it fell

(B) which had increased five percent during the first three months of this year after it had fallen

(C) which have increased five percent during the first three months of this year after falling

(D) with a five percent increase during the first three months of this year after falling

(E) with a five percent increase during the first three months of this year after having fallen  

答案为C

想问一下，A、B好排除，但为什么要用完成时态？C、D用with错在哪里了？after后面是在过去的两年里，为什么after后不用after having fallen  ？

你可以先找前人讨论看一下

gwd 24-8
http://forum.chasedream.com/dispbbs.asp?boardID=23&ID=75258&page=1

http://forum.chasedream.com/dispbbs.asp?boardID=23&ID=75555&page=1