题目

The hospitals were filled with patients，old and young，___ from breath-related problems.（ ）A. sufferedB. suffersC. sufferingD. suffer

The hospitals were filled with patients，old and young，___ from breath-related problems.（ ）

A. suffered

B. suffers

C. suffering

D. suffer

题目解答

答案

C. suffering

解析

步骤 1：分析句子结构
句子的主语是 "The hospitals"，谓语动词是 "were filled"，宾语是 "with patients"。"old and young" 是对 "patients" 的补充说明。因此，句子的主干结构已经完整，接下来需要分析 "___ from breath-related problems" 的作用。

步骤 2：确定非谓语动词
由于句子中已经有了谓语动词 "were filled"，所以 "___ from breath-related problems" 需要用非谓语动词形式。根据句子的意思，"patients" 和 "suffer" 之间是主动关系，因此应该使用现在分词形式 "suffering"。

步骤 3：选择正确答案
根据以上分析，正确答案是 C. suffering。