1、I love the book.The book is my friend.我喜欢这本书.这本书是我的朋友.(名词作主语)
2、Mother is a teacher.妈妈是一名教师.(系表作谓语)
比如
He is a teacher
1、I love the book.The book is my friend.我喜欢这本书.这本书是我的朋友.(名词作主语)
2、Mother is a teacher.妈妈是一名教师.(系表作谓语)
比如
He is a teacher
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