... working 25 "Nice picture" -"Yes, _ " A my grandmother painted B it was painted by my grandmother C my grandmother has painted D it has painted by my grandmother 26 A number of first-year students ... diễn tiến bò gián đoạn hành động khác khứ xảy (Past simple) Past continuous diễn tả hành động diễn tiến đồng thời • When it began to rain, I was standing at the bus stop • We were playing chess ... here since we were born here since we were born Present perfect or Present perfect continuous? My brother (photocopy) a pile of documents Scott and Rebecca (play) volleyball for this club since...