语法总结：人称代词+否定句
I am not happy. I’m not happy.
It is not good. It’s not good.
She is not OK. She’s not OK.
He is not my son. He’s not my son.
You are not Jack Ma. You’re not Jack Ma.
We are not a family. We’re not a family.
新单词：they=他们，她们，它们
They are not Chinese. They’re not Chinese.
annie西西
they 他们，她们
甘心寂寞
西西老师讲的超棒
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西西老师这本书怎么办法能买到啊？