`2`. It was such a low bridge that the bus couldn't go under

`->` such a`/`an adj N that `:` quá ... đến nỗi

`3`. He last saw her twelve years ago

`->` S + hasn't + Ved`/`3 + for + time `=` S + last + Ved`/`2 + time + ago

 `4`. It took three hours to surf the net every night

`->` S + spends + time+ Ving `=` It took (sb) + time + to V

`@thew`

`2` It was such a low bridge that the bus couldn't go under

`->` Cấu trúc : S + V + such + (a/an) + adj + N + that + S + V

`3` He last saw her twelve years ago

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

`4` It took three hours to surf the net every night

`->` Cấu trúc : It takes/ took (sb) + time + to V