门铃声把他吵醒了。

The ___ring of the doorbell woke him up.

走在街上，他听到一个声音：只是钟楼的钟声。

Walking down the street, he heard a noise: just the ___ring of the clock tower.

闹钟响亮的铃声吓了我一跳。

The loud ___ring of the alarm clock startled me.