Question

—Why do you call him Mr．Knowledgeable?

— Because he knows almost everything         we want to know．

A．which       B．what           C．who        D．that

Answer

D

【解析】

试题分析：句意：你为什么叫他万事通先生?因为他几乎知道一切我们想知道的. 1)先行词是不定代词：all,few,little, much,something,nothing,anything等。2)先行词被序数词或形容词最高级所修饰。3)先行词被all,any,every, each, few,little,no,some, 等修饰。4)先行词被 the only, the very, the same, the last 修饰时.5)先行词既有人又有物时。结合句意，故选D

考点：考查定语从句的用法。