问题补充:
We are seeking a prime minister, who will devote himself to the interest of the country.
A. he
B. him
C. that
D. one
答案:
A. he
B. him
C. that
(答案→)D. one
解析:句意:我们正在寻找一位总理,也就是一位能把自己的一生贡献给国家的利益的人。one是先行词,这里who引导的是定语从句。one在这里是a prime minister的同位语,故选D。