根据身份证上的信息，他已经到了可以投票的年龄。

According to his ID, he has reached the voting ___age.

工业革命标志着现代工业时代的开始。

The Industrial Revolution marked the beginning of the modern industrial ___age.

随着年龄增长，他的头发开始变白。

His hair turned gray as he ___aged.

我等了老半天，公交车才来。

I waited for ___ages before the bus finally arrived.