1. Children start (слово) a very young age.

2. It’s a shame that in many (слово) , many children don’t want to learn.

3. It’s sad that in (слово) of the world, children want to learn but can’t.​

1. life

2. school

3. many

Объяснение:

1. Children begin to understand this world at a very young age.

2. It's a shame that in many schools, many children do not want to study.

3. It’s sad that in some frequency of the world, children want to learn, but they can't.

Может что-то не правильно, но я чем мог