24.​ Я думаю над этой проблемой с т

24.​ Я думаю над этой проблемой с тех пор, как изучаю историю древних цивилизаций. А что ты думаешь об этом?

Результаты (английский) 1:

24. I think over this problem with as long as I study the history of ancient civilizations. What do you think about this?

Результаты (английский) 2:

24. I think over this problem since I study the history of ancient civilizations. What do you think about it?

Результаты (английский) 3:

24.​ I think on this issue since then, as well as studying the history of ancient civilizations. And what do you think about this?