试题题干
The framework of design features was proposed by a linguist called （）.
参考答案
正确答案：
试题解析
A framework was proposed by the American linguist Charles Hockett.提出了一个框架的是美国语言学家Charles Hockett。
The framework of design features was proposed by a linguist called （）.
A framework was proposed by the American linguist Charles Hockett.提出了一个框架的是美国语言学家Charles Hockett。