`1`. It is the first time she has read this book.

`-` Cấu trúc: S+ have/ has+ not/ never+ Vpp+...+ before 

`≈` This/ It+ is+ the first time+ S+ have/ has+ Vpp+...

`2`. This is the first time I have eaten this kind of food.

`3`. It is a year since I worked for the company.

`-` Cấu trúc: It's+ khoảng TG/ mốc TG+ since+ S+ Ved/ V2

`4`. I haven't read a book since September.

`-` Sửa đề: on `->` in

`-` Cấu trúc: S+ last+ Ved/ V2+...+ in+ mốc TG

`≈` S+ have/ has+ not+ Vpp+...+ since+ mốc TG

`5`. An has been interested in healthy eating for `3` years.

`-` Cấu trúc: S+ began/ started+ to V/ Ving+...+ khoảng TG+ ago

`≈` S+ have/ has+ Vpp+...+ for+ khoảng TG