Tom is my friend.改为一般疑问句 This a key in English.(对划线部分提问）That is my uncle.改为否定句

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Tom is my friend.改为一般疑问句是Is Tom my friend？ Be动词提到句子开头
This a key in English.(对划线部分提问）是What this in English?
That is my uncle.改为悔源毕碧芹否定句 加否定词not 就为裂团That is not my uncle
is not 缩写成为isn’t

还有不懂的可以追问哦

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Is Tom your friend?
没有划钱
That is not my uncle

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is this your friend？
this is notmy uncle

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