1. I'm writing a letter.（變?yōu)橐话阋蓡?wèn)句）
        you        a letter?
2. They are playing soccer at school.（對(duì)劃線部分提問(wèn)）
                 they playing soccer?
3. Mr Green is playing the guitar.(對(duì)劃線部分提問(wèn)）
         Mr. Green         ?
4. They're talking to an old man.（對(duì)劃線部分提問(wèn)）
                 they talking to?
5. He often plays football in the afternoon.（用now替換often改寫句子）
He                 football now.