【题目】He is a professor, _____________ I have been looking forward to becoming.
A. which B. who
C. whom D. that
在线课程【答案】A
【解析】
考查定语从句。句意：他是一名教授，这是我一直期待着成为的职业。本句考查了关系代词which的特殊用法，which可以指代某一种职业，句中的professor就是指职业。句中关系代词which指代先行词，引导定语从句并在句中做动词become的宾语。所以要填which。