Răspuns:
Explicație:
Iti dau un exemplu
-My mother had already cooked dinner when I came back from school.(Cand ma intorceam de la scoala mama deja pregatea cina) Past perfect simple
- My mother had been cooking dinner when I cam from school.(Mama de ceva timp gatea cina ,cand eu ma intorceam de la scoala )Past continuous
Past simple ne spune ca mama terminase de catit cina , iar Past continuous ne arata ca nu are multa importanta cand a terminat mama ci timpul in care a gatito pana eu m-am intors de la scoala