Объяснение:
Traditional lifestyles were centered around acquiring and maintaining food, shelter, water, sanitation, etc. In other words daily activity in almost all ways centered around survival. Whereas there would have been rudimentary leaisure activities, they would have occupied a very limited portion of ones time. Including that of children. Everyone's effort would have been needed to meet the living requirements of the group. This can still be seen today in a number of tribal societies as well as some third world countries.
Contrast that with the extreme leisure time people in more developed countries enjoy. Although it wouldn't be hard to argue with the idea that people in modern societies use their leisure for endeavors that have little value, no one can realistically argue that they don't at least have it.
2.has begun заменяем на began
3. Добавляем has (has just begun)
4. Is he wearing...
5. Will you go
6.убираем have
7. He met you,didn't he?
8. ...,isn't he?
9.What did he cook?