阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Today, the USS Arizona lies 【小题1】 it sank: in the middle of the Pacific Ocean. Its location is marked with a memorial shaped like a bridge, which crosses the ship’s sunken remains. Each year, more than two million people visit the memorial. They come to see the shadow of the ship at the bottom of Pearl Harbor, to learn about the attack, to show respect for those who had lost their lives in the attack 【小题2】 to pray for world peace. Although about eight decades has passed, the attack on Pearl Harbor, one of the darkest episodes in American history, will never 【小题3】 (forget).