To hear her approach better, he turned the Vivaldi off.
He'd been so absorbed in thought he hadn't heard their approach.
She might even be able to hear his approach.
The man seemed absorbed in the sight and had not heard his approach.
Sometimes it seemed impossible that he should fail to hear our approach.
They had not heard his approach, and now he stood over them.
I have simply silenced it so no one can hear its approach.
What if he'd heard their approach and, fearing for his life, had hidden in another room?
Her back was towards us, and she had evidently not heard our approach.
I would like to hear the Council's approach on this.