2. didn't like (when we were young - quá khứ)

3. had done

4. have been studying (từ studying bạn viết sai chính tả)

6. has been (có since)

9. had given

16. has written (written sai chính tả)

19. had already taken

20. played

` text { 2. didn't like }`

` text { 3. had done }`

` text { 4. have been studying }`

` text { 6. has been }`

` text { 9. had given }`

` text { 16. has written }` 

` text { 20. played }`

` text { 19. have already taken }`

` text { Vì: already là dấu hiệu của HTHT => Chia theo HTHT }`

` text { # Còn lại đúng hết # }`

` text { Ý kiến riêng chữ hơi khó đọc }`

` text { Xin hay nhất }`