`2.` Peter is the tallest person in my class.

Cấu trúc:$S+tobe+the+adj-est+...$

`3.` The while dress is cheaper than the black dress.

$cheap><expensive$

Cấu trúc:$S_1+tobe+adj-est+than+S_2$

`4.` According to me, Maths is more difficult than English.

$difficult><easy$

Cấu trúc:$S_1+tobe+more+adj+than+S_2$

`5.` Mary is the most intelligent person in my group.

Cấu trúc:$S+tobe+the+most+adjt+...$

`6.` The Nile is the longgest river in the world.

Cấu trúc:$S+tobe+the+adj-est+...$

`7.` No mountant in the world is highter than mount Everest.

Cấu trúc:$S_1+tobe+more+adj+than+S_2$

`8.` She is the pretiest girl I have ever met.

Cấu trúc:$S+tobe+the+adj-est+...$

`9.` The more he works, the more tired he fees.

Cấu trúc:$The+comparative$ $adjective+S+V...,+the+comparative$ $adjective+S+V+...$

`10.` That computer works worse than this one.

$bad><good$

Cấu trúc:$S_1+tobe+more+adj+than+S_2$

`11.` The sooner we set off, the sooner we wiil arrive.

Cấu trúc:$The+comparative$ $adjective+S+V...,+the+comparative$ $adjective+S+V+...$

`12.` The better the joke, the louder the laughter.

Cấu trúc:$The+comparative$ $adjective+S+V...,+the+comparative$ $adjective+S+V+...$