一道英语的单选题

只B可以.首先先看这句子：they say that the man is a fluent speaker of English.是正确的．而这句：they say the man a fluent speaker of English.也正确 这差别在于前者为宾语从句，后者为宾补结构． 而本题实际是一题定语从句，the man 为they say 后的宾语，定语从句中宾语可省略．而注意say后有个is，故从第一个例句中知要用that . 其实整句如下：I will employ the man (who/that/whom) that they say is a fluent speaker of English. 而另一种表达可为：I will employ the man (A,B,D) they say a fluent speaker of English

有employ就用that

they say是插入语，去掉后who和that都可以阿。