`1`. He is different from his brother.

`-` be+ not+ the same as: không giống với

`≈` be+ different+ from: khác với

`2`. Her sister is more beautiful than her.

`-` So sánh hơn ( adj dài vần): S+ be+ more+ adj+ than+ O

`3`. His friend is better than him.

`-` good có tính từ so sánh hơn là "better"

`4`. Lan's sister is not as good as Lan.

`-` So sánh bằng: S+ be+ ( not)+ as+ adj+ as+ O

`5`. Yesterday wasn't as cold as today.

`-` giải thích giống câu `4`

`1`.He is different from his brother

`->` S1 + is / am / are / ... + different from + S2

`=>` Khác nhau

`2`.Her sister is more beautiful than her

`->` SSH ( `2 , 3` ) :

`=>` S1 + is / am / are / ... + adj-er / more adj + than + S2

`*` Khi Tính từ có `2` âm tiết trở lên , ta thêm " more " trước nó

`3`.His friend is better than him

`->` good `->` better ( SSH ) `->` the best ( SSN ) : tốt

`4`.Lan's sister is not as good as her

`->` SS Ngang bằng ( `4 , 5` ) :

`=>` S1 + is / am / are / ... ( not ) + as + adj + as + S2

`5`.Yesterday wasn't as cold as today

`\text{# TF}`