ПОЧЕРКНИ ОПАСНЫЕ МЕСТА.РУССКИЙ,РАССКАЗ,РАССКАЗЫВАТЬ,НАРОД,НАРОДНЫЙ,ЯЗЫК,МОРОЗ,ЗАМОРОЗКИ,ДЕД МОРОЗ.

Дано: треугольник АВС,DF-средняя линия. DF параллельна АС, АD=3см,DВ=1см.Площадь треугольника АВС=64см в квадрате. Найдите площадь треугольника BDF.

Помогите срочно, плизз. Переведите и поставте правильную форму глагола в место скобок: The first record of the Olympic Games dates from 776 BC but it is likely that many competitions (hold) before then. The modern Olympic Games (begin) in 1896. America (host) the modern Olympics 4 times, Australia twice, and in 1980 it (be) Moscow that (host) the Summer Olympic Games. No Olympics (hold) in 1916, 1940 and 1944 because of war. The Winter Olympics (begin) in 1924, originally the same year as the summer competition, but now (hold) on alternate years. The Olympic Games (сhange) over time and (regulate) by the International Olympic Committees. Almost every sport, from archery to yachting, (include) in the Games and it (continue) to be the world's largest sports event.