句型转换。
1. The stamp is one yuan.（对划线部分提问）
2. Danny needs some stamps.（改为一般疑问句）
3. This is a stamp.（改为一般疑问句）
4. I put the stamp in the comer.（对划线部分提问）
5. These are some computers.（改为单数句）
1. How much is the stamp?
2. Does Danny need any stamps?
3. Is this a stamp?
4. Where do you put the stamp?
5. This is a computer.
