By the time he finished high school, Roberto had received several other offers from major league teams in the United States.

VOA: special.2010.04.11

But by the time he was thirteen years old, he was winning against players two times his size and age.

VOA: special.2010.02.07

Dentists say children should have their first dental visit at least by the time they are one year old.

VOA: special.2009.03.11

By the time he returned to England in October of eighteen thirty-six, he was already a well known geologist and naturalist.

VOA: special.2009.02.25

ROCKFORD: "So what?" ALLEN: "By the time we came out, we looked like the last two passengers on Noah's Ark."

VOA: special.2009.03.09

The members of the quartet had become major stars by the time they returned to the United States.

VOA: special.2009.03.01

A youngster who develops diabetes in his teens may need a kidney transplant by the time he's thirty."

VOA: special.2010.06.07

They had to work. By the time Sarah was five years old, she was picking cotton in the fields with her family.

VOA: special.2010.03.28

By the time John was 30 years old, he had become one of the leaders of his town.

VOA: special.2010.06.26

By the time of her death in nineteen seventy-six, the yard had more than three hundred statues of animals and imaginary creatures.

VOA: special.2010.04.14

We began to drink. By the time we had finished the first bottle, Simon was very drunk.

VOA: special.2011.06.25

Experts say by the time a farmer discovers that something is wrong, it is already too late.

VOA: special.2009.09.21

But many others cooperated. And by the time Japan attacked Pearl Harbor, the American economy was producing millions of guns and other weapons.

VOA: special.2011.06.30

By the time she was seventeen, Marilyn was trying very hard to be a movie actress.

VOA: special.2009.12.06