1) She's very happy that her son has finished the technical school
2)My brother has been training on stadium from 7 to 8 (Здесь по идее должно быть написано с 7 вечера до 8 или с 7 утра до 8, то есть или a.m или p.m)
3)My sister has bought a pair of beautiful fashion footwear
4)She hasn't danced for an eternety
5)When Max came from technical school his frieds were playing in the yard