按要求变换句型。

1. He used to walk to school.(改为一般疑问句)

    _____ he ____ to walk to school.

2. Danny asked  Sandy  if she could swim.(改为直接引语)

    Danny asked, “_____ _____ swim,Sandy?”

3. Simon said, “I am very busy.”(改为间接引语)

    Simon said that_____ _____ very busy.

4. The teacher said to him, “Don’t sleep in class.”(改为间接引语)

    The teacher told him_____ _____ ____ in class.

5. His uncle is a doctor.(对划线部分提问)

    _______ _____ his uncle_______?