【简答题】

阅读下面材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。
California is the most multicultural state in the USA with its people from all over the world. The  61  (diverse) of its culture is quite reasonable. In fact，no one knows exactly when the first people arrived in  62  we now know as California. However , 63  is likely that Native Americans were living in California at least fifteen thousands years ago. Scientists  believe these settlers crossed the Bering Strait in the Arctic to America by means of a land bridge _64__ existed in prehistoric times. In the 16th century ,  65  the arrival of  the Europeans, the native people suffered greatly. Thousands were  killed  66  forced into slavery , In addition, many died from the disease  67  (bring) from Europe.  68 , some survived these terrible times, and today there are more Native Americans 69  (live) in California than in any  70__state.