单词拼写。 1. It was _________(安排)that they should leave the following spring. 2. Harry Potter lives in a _________(幻想) world, which is totally different from ours. 3. As beginner of a second language, you have many difficulties to _______(克服). 4. The villagers here _________(依赖) on wells for their water at present. 5. They found themselves _________(包围)by colorful rocks, fishes, seashells and plants. 6. When water __________(结冰), its density decreases. 7. Mixed -race m_________were forbidden by law. 8. The nutrients in whatever falls into the ocean will quickly become a______ to other living creatures. 9. There was little change in their d________lives. 10. Their ages r________from 25 to 50.