Viết lại các câu sao cho nghĩa không đổi dùng thì hiện tại hoàn thành

`1` Samuel has kept a diary since 1997.

`2` We have learned English for fìve years.

`3` I have lived in Ho Chi Minh City since I was 8.

`4` She started teaching the children in this remote village five months ago. 

`5` The last time he wrote to me was in April.

`6` She last swam five years ago.

`7` They haven't talked to each other for two months.

`8` She hasn’t seen her elder sister since 1999.

`9` It’s years since she last wrote to me.

_______________

`@` HTHT

`+)`S + have/ has + V3/ed + O

`-)`S + have/ has + not+  V3/ed + (O)

`?)`Have/ Has + S + V3/ed + (object)?

`->` DHNB: since,just, yet, ever, for 

`color{aqua}{\text{_ThuyLinh}}`

`1,` Samuel has kept a diary since 1997.

- S + started/began + to V/V-ing + O + when/in/on/at/ago...

= S + has/have + Vpp + O + for/since + time

`2,` We have learned English for fìve years.

- S + has/have + Vpp + O + for/since + time

= S + started/began + to V/V-ing + O + when/in/on/at/ago...

`3,` I have lived in Ho Chi Minh City since I was 8.

- S + started/began + to V/V-ing + O + when/in/on/at/ago...

= S + has/have + Vpp + O + for/since + time

`4,` She started teaching the children in this remote village five months ago.

- S + has/have + Vpp + O + for/since + time

= S + started/began + to V/V-ing + O + when/in/on/at/ago...

`5,` The last time he wrote to me was in April.

- S + last + Ved/V2 + O + thời gian 

= The last time + S + Ved/V2 + O + was + thời gian 

-> S + has/have + not + Vpp + O + for/since + thời gian 

- for + khoảng thời gian , since + mốc thời gian 

`6,` She last swam five years ago.

- S + last + Ved/V2 + O + thời gian 

= The last time + S + Ved/V2 + O + was + thời gian 

-> S + has/have + not + Vpp + O + for/since + thời gian 

- for + khoảng thời gian , since + mốc thời gian 

`7,` They haven't talked to each other for two months.

- S + last + Ved/V2 + O + thời gian 

= The last time + S + Ved/V2 + O + was + thời gian 

-> S + has/have + not + Vpp + O + for/since + thời gian 

- for + khoảng thời gian , since + mốc thời gian 

`8,` She hasn’t seen her elder sister since 1999.

- S + last + Ved/V2 + O + thời gian 

= The last time + S + Ved/V2 + O + was + thời gian 

-> S + has/have + not + Vpp + O + for/since + thời gian 

- for + khoảng thời gian , since + mốc thời gian 

`9,` It’s years since she last wrote to me.

- S + has/have + not + Vpp + O + for/since + time

= It's + time + since + S + (last) + Ved/V2 + O