21.   I thought I heard voices outside.

22.   I was going to leave a note, but there was no one at Reception and then I heard your voice in here.

23.   It was then Gedanken realized that all along she had been hearing the voices of the beetles over a loudspeaker.

24.   Jon could hear her voice but was unable to see anything in the gloom.

25.   Kneeling by the side of the terrarium, David suddenly heard voices down below in the kitchen.

26.   On hearing my voice he put down the phone.

27.   Roland heard her voice again, remembered all that had happened, and fell for his first love.

28.   She could faintly hear voices as she began to regain consciousness.

29.   She could hear voices inside, but no one came to the door.