I never knew that till I married your uncle.

On our farm, the boys always shouted and screamed at the cows when they were driving them, and sometimes they made them run.

They're never allowed to do that here." "I have noticed how quiet this farm seems," said Miss Laura.

"You have so many men about, and yet there is so little noise." "Your uncle whistles a great deal," said Mrs.Wood.

"Have you noticed that?
He whistles when he's about his work, and then he has a calling whistle that nearly all of the animals know, and the men run when they hear it.