I haven’t met my best friend since I was 18 years old. → I last _______________________________________________________________.
Giải thích
I last met my best friend when I was 18 years old.
(Lần cuối cùng tôi gặp bạn thân là khi tôi 18 tuổi.)
I last met my best friend when I was 18 years old.
(Lần cuối cùng tôi gặp bạn thân là khi tôi 18 tuổi.)