几道语法的疑问。

waterflea

1. After a few weeks’ experience, apprentice jewelers can usually begin to discriminate, though not with absolute certainty, genuine diamonds from imitation diamonds.
(A) genuine diamonds from imitation diamonds
(B) genuine diamonds apart from imitations
(C) between genuine diamonds and imitation diamonds
(D) among genuine diamonds and imitation diamonds
(E) whether diamonds are imitation or genuine

答案是C，A似乎也可以啊？

2.If anyone at InterCom Financial Advisers would have anticipated, or even suspected, the impending sale of the Koniko kelp processing plant, they would have advised owners of Koniko stock to unload all shares immediately.
(A) If anyone at InterCom Financial Advisers would have anticipated
(B) Had anyone at InterCom Financial Advisers anticipated
(C) If any people at InterCom Financial Advisers would have anticipated
(D) If any people at InterCom Financial Advisers had anticipated
(E) If anybody at InterCom Financial Advisers anticipated

答案是D，为何不是B？

3. Most North Carolina ski resorts broadcast music onto the slopes; skiers can choose among hard rock, soft pop, and “beautiful music” slopes, there are no slopes without music.
(A) skiers can choose among hard rock, soft pop, and “beautiful music” slopes, there are
(B) because skiers can choose hard rock, soft pop, or “beautiful music,” there are
(C) however, skiers can choose among hard rock, soft pop, “beautiful music,” and
(D) although skiers can choose among hard rock, soft pop, and “beautiful music” slopes, there are
(E) skiers can choose among hard rock, soft pop, “beautiful music” slopes, but

答案是D，似乎意思不通，A错在哪里？

4. The endurance and consistency of baseball star Lou Gehrig, known as “The Iron Horse,” are legendary.
(A) The endurance and consistency of baseball star Lou Gehrig, known as “The Iron Horse,” are legendary.
(B) The endurance and consistency of Lou Gehrig, a baseball star know as “The Iron Horse,” is legendary.
(C) Known as “The Iron Horse,” the endurance and consistency of Lou Gehrig, the baseball star, is legendary.
(D) The reason baseball star Lou Gehrig is known as “The Iron Horse” is because of his legendary endurance and consistency.
(E) Known as “The Iron Horse,” baseball star Lou Gehrig’s endurance and consistency are legendary.

答案是A。

“x of y, known as Z” 结构中Z具体对应的应该是X还是Y？

gemj

3。
A是典型的RUN－ON的句子结构。两个句子没有连词连接。

gemj

4.
这个题目对应的当然是Y。

waterflea

谢谢楼上。其他两题错在哪里呢？

nickynicky

1。descriminate between A and B,discriminate没有descriminate a from b的用法
2。any people对应后面的have...复数，anyone就不能用have了，has

waterflea

谢谢nicky