The manager was very angry，for he had sent his business partner two thousand mac

题型：不详难度：来源：

The manager was very angry，for he had sent his business partner two thousand machines yesterdy，half of    unqualified．
A．whom    B what    C them   D．which

答案

C

解析

考查人称代词作独立主格的逻辑主语。句意：经理非常生气，因为他已发给他商业伙伴两千台机器，其中一半有质量问题。half of     unqualified．是独立主格结构，half of    是unqualified的逻辑主语，of是介词，所以此处要用宾格。