22. The last time I saw him was in June.

→ I have not seen him since June.

23. He started working in this company 5 years ago.

→ He has worked in this company for 5 years. 

24. They began living here ten years ago.

→ They have lived here for ten years. 

25. Lan stared to learn French since 2000.

→ Lan has been learning French since 2000.

26. The last time Lan went to the zoo was two years ago.

→ Lan has not gone to the zoo for two years.

27. I haven't eaten this kind of food before.

→ This is the first time I have eaten this kind of food. 

22. I haven't seen him since June.

23. He has worked in this company 5 years ago.

24. They have lived here for ten years.

25. Lan has learnt French since 2000.

26. Lan hasn't gone to the zoo for two years ago.

27. This is the first time I have eaten this kind of food.

- Thì Hiện tại hoàn thành diễn tả một hành động đã bắt đầu từ quá khứ (không rõ thời gian) kéo dài tới hiện tại, có thể tiếp diễn trong tương lai.