题目内容
【题目】Mum is cooking eggs in the kitchen. (改为否定句)
【答案】Mum isn't cooking eggs in the kitchen.
【解析】句意：妈妈正在厨房煮鸡蛋。句子中有系动词be的句子，变否定句时，在系动词is后直接加not，缩写成isn't，所以答案是：Mum isn't cooking eggs in the kitchen.
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【题目】Mum is cooking eggs in the kitchen. (改为否定句)
【答案】Mum isn't cooking eggs in the kitchen.
【解析】句意：妈妈正在厨房煮鸡蛋。句子中有系动词be的句子，变否定句时，在系动词is后直接加not，缩写成isn't，所以答案是：Mum isn't cooking eggs in the kitchen.