The college student lost his life trying to save the drowning child he will always be re

问题补充：

The college student lost his life trying to save the drowning child, he will always be remembered.

A. in which

B. about which

C. by which

D. for which

答案：

A. in which

B. about which

C. by which

(答案→)D. for which

解析：答案：D考查非限制性定语从句。分析句子结构可知，逗号后为定语从句，先行词为逗号前整句话内容，语境表示“因他所做的一切，他将永远被铭记”。在选项中，介词for可表示原因，符合题意，因此，空格处应用for which来引导定语从句。故答案选D。