1.
->She has worked as a secretary for five years
2.
->We have cooked for the party for four hours
3.
->He hasn't paid taxes since 19970
->The last time he paid taxes in 1970
4.
->I haven't eaten meat for 5 years
->The last time I ate meat 5 years ago
->It's 5 years since I last ate meat
5.
->I haven't taken photographs for years
->I last took photographs years ago
->The last time I took photograph years ago
6.
->I haven't watched TV since New Year's day
->The last time I watched TV on New Year's day
7.
->He hasn't written to me for 3 months
->The last time he wrote to me 3 months ago
->He last wrote to me 3 months ago
Chúc bạn học tốt!