3) The children were too late to see the display of fireworks.

The children weren’t.................................................................................(enough)

4) Your brother is too young to go out alone at night.

He isn’t…..………..……..........................................................................(enough)

Your brother is so....................................................................................

`3,` The children weren't early enough to see the display.

`@` S+ tobe (+not) +adj + enough + to V- inf : Ai đó (không) đủ như thế nào đó để làm gì đó 

`4,`

-> He isn't old enough to go out alone at night.

`@` Tương tự câu `3` 

-> Your brother is so young that he mustn't go out alone at night.

`@` S + tobe + so + adj+ that+ clause. : Ai đó quá như thế nào đó đến nỗi/đến mức mà ....

`3` The children weren't early enough to see the display

`4` He isn't old enough to go out alone at night

     Your brother is so young that he can't go out alone at night

`-` CT :

S + to be + adj + enough + ( for sb ) + to V

S + to be + too + adj + ( for sb ) + to V 

S + to be + so + adj + that + S + V

$baoyen.$