10. If the attempts to sell the wing of the space shuttle on eBay had been discovered earlier, then the signature marks of a Klingon phaser would have been recognized and reported to the press before the story was run by The New York Times.

Ans.

10. If NASA had discovered the attempts to sell the wing of the space shuttle on eBay earlier, then they would have recognized the signature marks of a Klingon phaser before The New York Times ran the story.

1) This time there are three. The agent [(1) NASA and (2) they] is hidden in the first two.

In the third sentence, "The New York Times is the agent and it should have been well identified by the presence of the "by" (3 pts.)

Total = 3 pts.