tone

我试图使用一种同情的语气。

I tried to use a sympathetic ___tone of voice.

让我恼火的不是她说的话，而是她的语气。

It wasn't so much what she said that annoyed me - it was her ___tone.

他继续用平静的语气解释他们的动机。

He went on in a quiet ___tone, explaining their motives.

我拿起听筒，听到了熟悉的拨号音。

I picked up the receiver and heard the familiar ___tone of the dialling signal.

他试图打电话，但线路上没有声音。

He tried to make a call, but there was no ___tone on the line.

持续的忙音表示电话占线。

The continuous ___tone indicated that the number was engaged.