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Read the following information about famous moments in history. Then choose the correct form. Only one verb in each paragraph is past perfect.
A) Columbus left Spain in August 1492 with three ships, to try and find a way to India by sailing west instead of east. When his ships a) finally reached / had reached land on 12 October, he thought he was there, but the ships b) arrived / had actually arrived in America instead.
B) Captain Robert Scott wanted to reach the South Pole first. He and his companions finally arrived there on 1 January 1912 after a terrible journey across the ice, but c) found / had found a Norwegian flag. Unfortunately for Scott, Roald Amundsen d) got / had got there on 14 December, 18 days earlier.
C) Leonardo painted his famous The Last Supper between 1495 and 1498, but the painting started to deteriorate within 50 years. The most common explanation for this used to be that Leonardo e) used / had used the wrong kind of paint, but experts have always disagreed about this, and many believe that the damp in the wall is the cause of the damage. Between 1978 and 1999, experts f) restored / had restored the painting, and the public can now see it again.