1. Lincoln, discovering in young manhood the secret that the Yankee peddler has learned before him, knew how to use a good story to generate good will.

(A) Lincoln, discovering in young manhood the secret that the Yankee peddler has learned before him, knew

(B) Discovering in young manhood the secret that the Yankee peddler has learned before him, Lincoln knew

(C) Lincoln, discovering the secret that the Yankee peddler had learned in young manhood before him, knew

(D) In young manhood Lincoln discovered the secret that the Yankee peddler had learned before him;（B）

(E) Lincoln, discovered in young manhood the secret that the Yankee peddler had learned before him, knew

偶认为答案应为E, 请比较OG42, discover 这个动作在过去就完成了，用现在分词与句意不符。

42. The current administration, being worried over some foreign trade barriers being removed and our exports failing to increase as a result of deep cuts in the value of the dollar, has formed a group to study ways to sharpen our competitiveness.

(A) being worried over some foreign trade barriers being removed and our exports failing

(B) worrying over some foreign trade barriers being removed, also over the failure of our exports

(C) worried about the removal of some foreign trade barriers and the failure of our exports

(D) in that they were worried about the removal of some foreign trade barriers and also about the failure of our exports

(E) because of its worry concerning the removal of some foreign trade barriers, also concerning the failure of our exports 答案C

1discoverd是表示被动，不是表示完成的。

2C没问题啊，worried over= which is worried over一个定语从句。