`13,` The food is good enough for the children to eat.

`14,` The man is rich enough to buy this expensive car.

`15,` These paintings are good enough to enter for competition.

`16,` ... so that the tourists could ...

`17,` They didn't arrive early enough to see the beginning of the film.

* Lý thuyết:

Enough to của tính từ:

`-` S + V (not) + adj (nếu là V to be)/adv (nếu là V thường) + enough + (for O) + to-inf: ... đủ (cho ai) làm gì

So that:

`-` S + V  + so that + S + V: ... để ... 

+13 The food is good enough for the children to eat.

  +14 The man is rich enough to buy this expensive car.

  +15 These paintings are good enough to enter for competition.

Đối với enough ,ta có cấu trúc sau :

-Nếu là tính từ ,trạng từ thì tính ,trạng đứng trước enough :

VD good enough , beautiful enough

- Nếu là danh từ  thì danh từ đứng sau enough

VD: enough money, enough room

16 The bus driver stopped frequently to allow the tourists to see the sights

The bus driver stopped frequently so that the tourists can see the sights

- So that: để mà.

1. They arrived too late. They didn't see the beginning of the film. (enough)

->They didn't arrive early enough to see the beginning of the film..