1. The Minnesota Zoo has two rare Amur tiger ____. 2. Amur ____ are endangered. 3. There are not very many of them left in the ____. 4. They were near the edge of ____ in the 1930s and 1940s. 5. It's hard to breed ____ tigers. 6. When the cubs are older they might be moved to other ____.

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?