单词拼写。 1. She took the car without ______________. (许可,允许) 2. The kids are always playing ______________on their teacher. (诡计,恶作剧) 3. I decided to go on a ______________before my holiday. (节食) 4. The ability to keep calm is one of her many ______________. (强项,长处) 5. Who will ______________from the changes? (受益) 6. Fruit juice can be ______________to children's teeth. (有害的) 7.What were you _______________about? (闲聊,聊天) 8.The beach is within walking ______________of my house. (距离) 9. If the pain continues, _______________ your doctor. (咨询) 10.It was ______________that the boy had been badly treated. (明显的)