Question

They are talking excitedly about the writers and their books ________ interest them

1. A.
   who
2. B.
   whom
3. C.
   that
4. D.
   Which

Answer 1

C
试题分析：此处the writers and their books是先行词，先行词既有人又有物，因此用关系代词that。这里that在定语从句作主语。句意：他们正在激动地谈论使他们感兴趣的作者和他们的书。
考点：考查定语从句的关系词。