题目内容
用本单元所学短语词组填空
He can speak several languages: English, Japanese, German and Spanish, but Chinese is his ________ and he thinks it is the most beautiful language in the world.
答案：mother tongue
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题目内容
用本单元所学短语词组填空
He can speak several languages: English, Japanese, German and Spanish, but Chinese is his ________ and he thinks it is the most beautiful language in the world.