The trian couldn't leave because there was a storm

-> The storm prevented

You should finsh your home work right now

-> It is time for you

-> It is time you

The question is very difficult, so I can't answer it

-> The question is too

-> The question is not

My sister drinks more milk than I

-> I drink

-> I don't Drink

He likes reading books btter than watching Tv

-> He prefers reading

-> He would prefer

-> He would rather

No one in my class can speak English as well as Phong

-> Phong can

`1.` The storm prevented the train from leaving.

`-` S + prevent + sb/sth + from + V-ing: ngăn chặn ai/cái gì đó khỏi việc gì đó

`-` Thì QKĐ: `(+)` S + V2/ed

`2.`

`->` It is time for you to finish your homework.

`->` It is time you finished your homework.

`-` It is time + for sb + to V

`=` It is time + S + V2/ed

`=>` Đã đến lúc ai đó phải làm gì đó

`3.` 

`->` The question is too difficult for me to answer.

`->` The question is not easy enough for me to answer.

`-` S + tobe + too + adj + for sb + to V: quá ... đến nỗi không thể làm gì đó

`=` S + tobe + not + adj (trái nghĩa) + enough + for sb + to V: không đủ ... để làm gì đó

`4.` 

`->` I drink less milk than my sister.

`->` I don't drink as much milk as my sister.

`-` So sánh hơn: Với danh từ không đếm được: `(+)` S1 + V + more + N không đếm được + than + S2

`=` So sánh kém hơn: Với danh từ không đếm được: `(+)` S2 + V + less + N không đếm được + than + S1

`=` So sánh bằng: Với danh từ không đếm được: `(-)` S2 + aux + not + V + so/as + much + N không đếm được + as + S1

`5.`

`->` He prefers reading books to watching TV.

`->` He would prefer to read books rather than watch TV.

`->` He would rather read books than watch TV.

`-` S + like + V-ing + better than + V-ing

`=` S + prefer + V-ing + to + V-ing

`=` S + would prefer + to V + rather than + V(bare)

`=` S + would rather + V(bare) + than + V(bare)

`=>` Ai đó thích làm gì đó hơn là làm gì đó

`6.` Phong can speak English the best in my class.

`-` So sánh nhất: Với trạng từ ngắn: S + V + the + adv + -est + (N)

`-` can + V(bare): có thể làm gì đó