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.(
