改写句子。
1. He is ten years old.(对划线部分提问)
______ ______ ______ he?
2. He lives in the UK.(对划线部分提问)
______ ______ he live?
3. Peter can speak Chinese.(改为否定句)
________________________________________
4. Linda plays the piano very well.(改为一般疑问句)
_______ Linda _______ _______ _______ very well.
5. Mom is good at singing.(改为否定句)
Mom ______ _______ _______ _______.