1. We have lived here for 2 years. 2. They lived in Washington in 1960. 3. Lan left Hanoi last month and has worked in Ho Chi Minh city since then. 4. Mr Nam has taught English since 2000. 5. We bought this car 2 years ago. 6. How long have you been learning English? 7. I haven't seen him since we said goodbye. 8. Yesterday I visited my parents. 9. I have been learning English for 10 years. 10. Lan and Nga have been close friends since last year. 11. What did you do yesterday? 12. I have read the novel written by Jack London several times. 13. She was born in 1980. 14. Mr Nam has taught English in this school since he graduated from university in 2000. 15. Last month I was in the hospital. 16. I have had a computer since my nineteenth birthday. 17. The last time I went to Ho Chi Minh city was in 2012. 18. We moved here in 1998.We have been here for a long time now. 19. She has come to China four times.She loves this country 20. It was so hot that I went swimming with my friends yesterday. Bạn có thể tham khảo các câu trả lời trên để hiểu cách chia động từ trong ngoặc và viết lại câu hoàn chỉnh cho mỗi câu đề bài đã cho, từ đó rèn luyện kỹ năng về thì Quá khứ đơn và Hiện tại hoàn thành trong tiếng Anh nhé!