The last time my brother went out with his friends was a very long time ago. → It has been a very ___________________________________________________________
Giải thích
It has been a very long time since my brother last went out with his friends.
Câu gốc: The last time my brother went out with his friends was a very long time ago.
(Lần cuối cùng anh/em trai tôi đi chơi với bạn bè là cách đây rất lâu rồi.)
Cấu trúc: The last time + S + V2/ed + was + khoảng thời gian
= It has been + khoảng thời gian + since + S + last + V2/ed
=> It has been a very long time since my brother last went out with his friends.
Dịch: Đã rất lâu rồi kể từ lần cuối anh/em trai tôi đi chơi với bạn bè.