题目内容：

阅读下面材料,在空白处填入适当的内容（1个单词）或括号内单词的正确形式

The Amber Room 1.  (put) up in 1709. It used to belong 2.  Frederick William I, the first King of Prussia. Peter the Great fell in love with the room on a visit, and in 1716 the King of Prussia sent it to Peter the Great as a gift.

The Amber Room was shipped to Russia in 18 large boxes and put in the Winter Palace in St Petersburg as a part of a European art collection. It was first open in 1746 in the Winter Palace,   3.  it was housed till 1755. In 1755, Czarina Elizabeth ordered the room   4.  (move) to the Catherine Palace in Pushkin. An Italian   5.  (art) Bartolomeo Francesco Rastrelli redesigned the room to fit into its new larger space,   6.  (use) extra amber from Berlin.

7.  seems hard to believe that boxes of several tons of amber could go missing, and many historians have tried to solve the mystery. Most of them believe   8. the boxes were destroyed in the Second World War. One of the more extreme theories is that Stalin   9. (actual) had a second Amber Room and the Germans stole a fake (赝品).

The history of the new Amber Room, at least, is known for sure. The reconstruction (重建),   10.  was based largely on black and white photographs of the original Amber Room, began in 1979 at Tsarskoye Selo and was completed 25 years later.