Question

【题目】Water，which seems so simple and common，is ________ makes life possible.

A. whatB. that

C. whichD. how

Answer 1

【答案】A

【解析】

A

解析　考查名词性从句的连接词。句意为：看似简单平常的水是使生命出现成为可能的东西。what引导表语从句并在句中作主语。