1.He has not drunk wine for five years.

`->` It is five years since he last drank wine.

2, He has learned English for ten years.

`->` It is ten years since he last learned English.

3, They have not eaten anything for two days.

`->` It is two days since they last ate something.

4, Tuong Linh has stayed in Dalat for four days.

`->` It is four days since Tuong Linh last stayed in Dalat.

5,  Mr hai has not smoked for a week.

`->` It is a week since Mr Hai last smoked.

`@` Form :

S + have/has not + VptII + for + khoảng thời gian

`=` It is + khoảng thời gian + since + S + last + V2/ed+.....

`=` The last time + S + `V_{QKĐ}` + ...+ was + khoảng thời gian + ago.

`@` Động từ bất quy tắc :

+ drink - drank - drunk (v) : uống

+ eat - ate - eaten (v) L ăn

`@` Khi chuyển sang một câu khẳng định không phải là câu phủ định thì anything `->` something.

`#Tâm`

`1.`He has not drunk wine for five years.

`->` It is five years since he last drank.

`2.`He has learned English for ten years.

`->` It is ten years since he started learning English

`3.`They have not eaten anything for two days.

`->` It is two days since they last ate

`4.`Tuong Linh has stayed in Dalat for four days.

`->` It is four days since Tuong Linh started staying in Dalat

`5.`Mr hai has not smoked for a week.

`->` It is a week since Mr. Hai last smoked

`@` Kiến thức:

`-` S + last + Ved + time+ ago: Lần cuối cùng làm gì

`=>` S + have/ has +not+ for + time

`=>` It’s + time+ since + S + last + Ved.