题目内容
【题目】Sam is going to the supermarket with his mum. （变为否定句）
Sam________ going to the supermarket with his mum.
【答案】isn’t
【解析】
句子意思是：Sam打算和他的妈妈一起去超市。要变成否定句，直接在动词is后面加not即可。缩写为"isn't"。故答案为isn't。
练习册系列答案
相关题目
题目内容
【题目】Sam is going to the supermarket with his mum. （变为否定句）
Sam________ going to the supermarket with his mum.
【答案】isn’t
【解析】
句子意思是：Sam打算和他的妈妈一起去超市。要变成否定句，直接在动词is后面加not即可。缩写为"isn't"。故答案为isn't。