It is ______ knowledge that water freezes at 0℃.

It is ______ knowledge that water freezes at 0℃.
A、ordinary
B、normal
C、usual
D、common
【正确答案】：D
【题目解析】：译文：零度时水结冰是一种常识。本题考查固定短语。common knowledge常译为常识，共知。答案为D。