`1` Ben is `25` years old. Kate is `25` years old too.

`=>` Ben is as old as Kate is

Cấu trúc: `S_1` + to be + as + adj + as + `S_2`

`2` Gold is heavier than silver.

`=>` Silver isn't as not heavy as Gold

Cấu trúc: So sánh bằng

`=>` `S_1` + be ( not ) + as + adj + as + `S_2` + ( be/Aux )

`3` Both Jane and her father are smart.

`=>` Jane is as smart as her father

Cấu trúc: `S_1` + be + as + adj + as + `S_2`

`1)` Ben is 25 years old. Kate is 25 years old too.

Dịch: Ben 25 tuổi. Kate cũng 25 tuổi.

`=>` Ben is the same age as Kate

Dịch: Ben bằng tuổi Kate

Cấu trúc: S + V + as + (adj/ adv) + as 

`2)`  Gold is heavier than silver.

Dịch: Vàng nặng hơn bạc.

`=>` Silver is lighter than Gold 

Dịch: Bạc nhẹ hơn vàng

Cấu trúc: S+adj/adv + đuôi -er + than+..

`3)` Both Jane and her father are smart.

Dịch: Cả Jane và cha cô đều thông minh.

`=>` Jane is smart and her father is smart too

Dịch:  Jane thông minh và bố cô ấy cũng thông minh