根据句意及首字母提示完成下列句子。 |
1. Columbus d _____ America in 1492. 2. Gradually a smile a _____ on her face. 3. We should protect e _____ animals. 4. Some of the swamps have become p _____ .They are dirty now. 5. It's popular for city people to spend their vacation in the village with the v _____ . |