`24.` They have lived here for ten years.
`25.` Lan has been learning French since 2000.
`26.` Lan hasn't gone to the zoo for 2 years.
`27.` This is the first time I have eaten this kind of food.
`28.` It's three years since she started to study Japanese.
`29.` She hasn't had a holiday for 2 years.
Cấu trúc:
+) S + started + Ving/ to V + Thời gian + ago.
= S + have/has + VptII + for/since + Thời gian
+) It's + Thời gian + since + S + V(quá khứ đơn): đã ... kể từ khi ...
+) This/ It is the first/ second ... time + S + V(hiện tại hoàn thành): đây là lần đầu tiên/ thứ hai...