I haven't seen him since I left school.
→ I last..........
A. seen him since I left school
B. seen him when left school
C. saw him when I left school
D. saw him since I left school
Đáp án đúng: C
Dịch: Lần cuối tớ gặp anh ấy khi tớ rời trường
I have never seen such a beautiful girl before.
→ She is..........