Giúp mik với ạ .mik c.ơn

1. When did he leave school?

2. It's the first time Nam has ever spoken to a foreigner.

3. Hung has been learning English since he was 5 years old.

4. We haven't seen him for nearly two years.

5. It's years since I enjoyed myself so much.

6. It's over 20 years since he came back to his home village.

7. We have been living here for fifteen years.

8. Is this the first time you have ever played a computer game?

9. I haven't seen him since I was a student.

10. They haven't lived in their homeland for over two years.

11. I haven't seen Bob since I was in Ho Chi Minh City.

12. This is the first time I have seen that man here.

13. The last time Hoa was seen was on her birthday.

14. They moved here six years ago.

15. It's the most romantic story I've ever read.

$-----$

`@` Hiện tại hoàn thành:

`+)` Khẳng định: S + have/has + VpII

`+)` Phủ định: S + have/has + not + VpII

`+)` Nghi vấn: Have/Has + S + VpII?

`@` Quá khứ đơn (Simple Past):

`+)` Khẳng định: S + V2/Ved

`+)` Phủ định: S + did not + V

`+)` Nghi vấn: Did + S + V?

`@` It's `+` khoảng thời gian `+` since `+` S `+` V2/Ved

`@` This is the first/second/... time `+` S `+` have/has `+` VpII

`@` The last time `+` S `+` V2/Ved `+` was `+` khoảng thời gian `+` ago

$-----$

`+)` VpII `->` động từ quá khứ phân từ (past participle).

`+)` Các cấu trúc này thường được kết hợp với các trạng từ chỉ thời gian như for, since, ago, never, ever,...

`1.` When did he leave school?

`2.` It's the first time Nam has ever spoken to a foreigner.

`3.` Hung has been learning English since he was `5` years old.

`4.` We haven't seen him for nearly two years.

`5.` It's years since I enjoyed myself so much.

`6.` It's over `20` years since he came back to his home village.

`7.` We have been living here for fifteen years.

`8.` Is this the first time you have ever played a computer game?

`9.` I haven't seen him since I was a student.

`10.` They haven't lived in their homeland for over two years.

`11.` I haven't seen Bob since I was in Ho Chi Minh City.

`12.` This is the first time I have seen that man here.

`13.` The last time Hoa was seen was on her birthday.

`14.` They moved here six years ago.

`15.` It's the most romantic story I've ever read.

`@`$\text{Kiến thức :}$

`-` $\text{ S + last + Ved / V2 + time + ago / in + mốc thời gian / when + clause}$

`=` $\text{S + have / has + not + Ved / V3 + for / since}$

`=` $\text{It's + time + since + S + last + Ved / V2}$

`=` $\text{The last time + S + Ved / V2 + was + time + ago}$

 `-`  $\text{This is the first time + S + have / has + Ved / V3}$

`=` $\text{ S + have / has + never + Ved / V3 + before}$

`-`  $\text{S + started / began + V-ing / to V + time + ago / in + mốc thời gian / when + clause}$

`=` $\text{S + have / has + Ved / V3 + for / since}$