The Amber Room ____to the great wonders of the world. It was originally ____(design) for the palace of Frederick Ⅰ. ____took the country's best artists about ten years to finish it. Everyone thought ____(high) of its style and design. Several tons of amber as well as gold and jewels were used to make it, so no wonder it is worth a lot of money. But later, the next King of Prussia decided to give it as a gift to Peter the Great, ____ gave Prussia a troop of his best soldiers in ____. Unfortunately, during the Second World War, the Nazi Germany was at war with Russia. In 1941, Germany invaded (入侵)Russia, and the Russians had no time to ____anything from the Amber Room except some furniture and small art objects. When the Nazis saw the Amber Room, there was no ____that they liked it so much that they took it apart and in less than two days 100,000 pieces were put inside twenty-seven wooden boxes. The boxes were then put on a train for Konigsberg. Since then, the whole world has been in ____ of the Amber Room. No one knows what ____ (happen) to it and whether it still exists now. Maybe it will remain a mystery forever.