标题: [求助]请教大全16 [打印本页] 作者: dreadpower 时间: 2003-11-25 21:07 标题: [求助]请教大全16 16.A number of linguists contend that all of the thousands of languages spoken by the world’s five billion people can be traced back to a common root language. (A) that all of the thousands of languages spoken by the world’s five billion people can be traced (B) that the world’s five billion people speak thousands of languages of which all can be traced (C) the world’s five billion people speak thousands of languages which are all traceable 答案是A没问题
B中其他错误暂且不管，of which all 这样的表达对吗？是不是可以改为，all of which