【题目】句型转换。
1.I am running on the playground .(变否定句)
I_______ ________ on the playground .
2.She is dancing in the gym.(变一般疑问句，并做肯定回答)
_______ ________ dancing in the gym？
3.They are sleeping at the moment.(划线部分提问)
______ _______they _______at the moment ?
【答案】1.amn’t running 2.Is she 3.What are doing
【解析】
略