He is ___（a；an；the） teacher who Chinese is troud of.怎么填?

He is ___（a；an；the） teacher who Chinese is troud of.怎么填?
He is ___（a；an；the） teacher who Chinese is troud of.怎么填?

He is ___（a；an；the） teacher who Chinese is troud of.怎么填?
应该：He is the teacher whose Chinese is proud of.
定语从句特指情况下使用the

He is a teacher who Chinese is proud of.

He is _the__ teacher who Chinese is troud of.
因为后面有限定词

应该：He is the teacher whose Chinese is proud of.

定语从句特指情况下使用the

你好，因为这里是特指，有一个who引导的定语从句修饰，所以应该用定冠词the
翻译是：他就是那位中国人引以为豪的老师
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