Arrange the sentences in the correct order to form a coherent paragraph.

A. They look sweet and elegant but the moment they open their mouths, they let out a shattering volume of sound.

B. Someone noted recently that present day babies are peculiarly loud-throated.

C. But it does not appear to have any effect on the children.

D. School teachers try to do their best from the early years by ordering, “Silence!” every few seconds in the class.