The basic word stock is the foundation of the vocabulary accumulated over centuries and forms the common ( )of the language.
【正确答案】：CORE
【题目解析】：本题考查基本词汇。The basic word stock is the foundation of the vocabulary accumulated over centuries and forms the common core of the language.一门语言的基本词汇是长期积累下来的，是该语言的共核。basic word stock: 基本词汇；foundation: 基础；core: 核心。故答案为core。
