Наблюдая за жизнью этих людей,учены

Наблюдая за жизнью этих людей,ученые узнали многое об их обычаях

Результаты (английский) 1:

Watching the lives of these people, scientists have learned a great deal about their customs

Результаты (английский) 2:

Watching the lives of these people, scientists have learned much about their customs

Результаты (английский) 3:

observing the life of these people, scientists have learned much about their customs