根据句意和汉语提示,填写单词。 1. An old woman won five _____ (百万) yuan in the lottery (彩票抽奖). 2. You look unhappy today. Please tell me your _____ (烦恼的事情). 3. His father was wearing a white shirt and a red ________(领带). 4. The book was the result of ten years of medical _____ (研究). 5. The famous singer gave much money to _____ (慈善事业) to help homeless children. |