After ten hour's drive,they finally reach what they thought
2个回答

they finally reach 后为宾语从句)what they thought was the place they had been dreaming of

宾语从句分析:

what (主语)they thought (插入语)was the place(谓语---系表结构) they had been dreaming of(修饰表语the place 的定语从句)

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