请教大全3-9，4-3

3-9.     In the United States, trade unions encountered far more intense opposition against their struggle for social legitimacy than the organized labor movements of most other democratic nations.

(A) against their struggle for social legitimacy than

(B) in their struggle for social legitimacy than did

(C) against their struggle for social legitimacy as

(D) in their struggle for social legitimacy as did（B）

(E) when they struggled for social legitimacy than has

请问a中的against有什么错误吗？

4-3.     It was the loss of revenue from declines in tourism that in 1935 led the Saudi authorities’ granting a concession for oil exploration to the company that would later be known by the name of Aramco.

(A) authorities’ granting a concession for oil exploration to the company that would later be known by the name of

(B) authorities’ granting a concession for oil exploration to the company later to be known as named

(C) authorities granting a concession for oil exploration to the company that would later be known by the name of

(D) authorities to grant a concession for oil exploration to the company that later will be known as being（E）

(E) authorities to grant a concession for oil exploration to the company later to be known as

答案是e，选对了，可是有点疑问为什么e不用would呢？

谢谢likui

可是第二题还是有问题。

(E) authorities to grant a concession for oil exploration to the company later to be known as

lead……to 我想应该是指黄色的部分吧.我想问的是红色的部分。为什么用to be？这里主句不是过去是吗？would be 是不是更好？

3xs

自己顶。拜托各位帮忙解答一下，多谢