I need help for SAT grammar!!!!

<p>Can someone explain why the following sentence is wrong?</p>

<p>"Interest to revive the ancient Olympic Games as an international event grew when the ruins of the ancient city of Olympia wee uncovered by German archaeologists in the mid-nineteenth century."</p>

<p>WHich of the following is incorrect?
A. to revive
B.as
C.when
D.were uncovered
E.no error</p>

<p>My guess is A is incorrect, as it should be “in reviving” instead. I think it’s simply idiom; the only real explanation for this is that that’s just the way English is.</p>

<p>B is correct, C is correct (“when” is referring to a specific event of the uncovering of Olympia), D is correct (it’s “were” and not “was” because “ruins” is plural).</p>

<p>I would agree. I had the same thought.</p>