1、The old man is taking a walk in the park.（改为否定句）2、We are talking about how to learn English well.（对划线部分提问,划线部分是how to learn English well.）3、Mike is playing computer games.（对划线部分提问,划线部分是Mike）4、Lily is looking for her pencil.（改为一般疑问句.并作否定回答）
问题描述：
1、The old man is taking a walk in the park.（改为否定句）
2、We are talking about how to learn English well.（对划线部分提问,划线部分是how to learn English well.）
3、Mike is playing computer games.（对划线部分提问,划线部分是Mike）
4、Lily is looking for her pencil.（改为一般疑问句.并作否定回答）
答
1、The old man isn't taking a walk in the park
2. what are you talking about ?
3 Who is playing computer games?
4 Is Lily looking for her pencil. No,she isn't
答
1.The old man isn't taking a walk in the park2.What are you talking about?3.Who is playing computer games?4.Is Lily looking for her pencil?No,she isn't.加油!