The war and the suffering ________ caused affected him greatly．
A.that
B.what
C.which
D.it
网友回答
D解析从句子结构看出，该句的主语为the war and the suffering，谓语为affected，主、谓之间为定语从句修饰suffering。根据句意分析，是“战争”带来了痛苦，所以此处选it指代the war。本句完整的表达为：The war and the suffering(that/which)it caused affected him greatly．