语法与词汇

The floor was unsafe, as some of the floor-boards had ________away.

【正确答案】 C

【答案解析】

句意：地板不安全，因为有一些地方已经腐烂了。damage损坏。destroy毁坏。rot腐烂。waste浪费。因此，本题的正确答案为C。