Đề bài: The last time I travelled abroad was the last summer. A. I have last travelled abroad last summer. B. I travelled abroad last summer. C. I haven't travelled abroad since last summer.
Đề bài: The last time I travelled abroad was the last summer.
A. I have last travelled abroad last summer.
B. I travelled abroad last summer.
C. I haven't travelled abroad since last summer.
D. I have travel abroad since last summer.