However, by early February the tone of the negotiations was growing increasingly acrimonious.
In the two weeks between the first and second rounds, the tone of the campaign grew nastier.
Father had barely been taking the proceedings seriously, but now his tone grew much more grave.
His stony silence continued, and her tone grew more pleading.
Her tone grew colder as she realized what the sergeant meant.
His tone had grown way too sarcastic for my comfort.
"I'm not saying anything that other people haven't said," Muller replied, his tone growing more defensive with each word.
He smiled at her, realizing his tone had grown a little harsh.
She began to turn away; his tone grew more emphatic, forcing her to listen.
His tone was growing more insistent, and a bit louder.