*9 The last time i saw him was 8 days ago

* 10  It is Monday since I last took a bath

1. studied

→the day before yesterday dấu hiệu thì quá khứ đơn

2. have studied

→ so fardấu hiệu thì HTHT

3. have never watched

→ never dấu hiệu thì HTHT

4. watched

→last night dấu hiệu thì quá khứ đơn

5. travelled

→many times in the past dấu hiệu thì quá khứ đơn 

6. travelled

→ last summer là dấu hiệu thì quá khứ đơn

7. have read

→ several times dấu hiệu thì HTHT

8. read

→ last vacation dấu hiệu thì quá khứ đơn

9. had

→last week là dấu hiệu thì quá khứ đơn

10. have had

→ since là dấu hiệu thì HTHT

11. have had

→ since là dấu hiệu thì HTHT

12. have lived

→ for ten years dấu hiệu thì HTHT

1. studied (the day before yesterday -> QKĐ)

2. have studied (so far-> HTHT)

3. never watch (never-> HTĐ)

4. watched (last night -> QKĐ)

5. had travelled (many times in the past - câu này mình nghĩ là QKHT á)

6. travelled (last summer -> QKĐ)

7. have read (several times -> HTHT)

8. read (last vacation -> QKĐ)

9. had (last week -> QKĐ)

10. have had (since -> HTHT)

11. have had (since -> QKĐ)

12. have lived ( for ten years -> HTHT)