1. The last time I ate sushi was last summer.
A. I have eaten sushi since the last summer .
B. I haven't eaten sushi since the last summer.
2. I last saw her on Monday.
A. I haven't seen her since Monday.
B. I have seen her since Monday.
3. I haven't watered this tree was a week ago
A. The last time I watered this tree was a week ago.
B. The last time I didn't water this tree was a week ago,
4.I started collecting stamps last winter.
A.I have collected stamps since last summer.
B.I have started collecting stamps since last summer.
MỜI BN THAM KHẢO!!!!!!!!!
XIN HAY NHẤT Ạ PLEASEEE