句型转换

1. I'm writing a letter.（变为一般疑问句）

        you        a letter?

2. They are playing soccer at school.（对划线部分提问）

                 they playing soccer?

3. Mr Green is playing the guitar.(对划线部分提问）

         Mr. Green         ?

4. They're talking to an old man.（对划线部分提问）

                 they talking to?

5. He often plays football in the afternoon.（用now替换often改写句子）

He                 football now.