12. It was too cold for us to go out.

13. This store isn't large enough for us to take notice of it.

14. These goods are so expensive to be sold that they can't be sold quickly.

@hoctot

12. It was too cold for us to go out.

13. This store isn't big enough for us to take notice of it.

14. These goods are so expensive that they can't be sold quickly.

15. The ground was too hard for him to dig it.

Giải thích bài:

Cấu trúc 'so that' (quá...đến nỗi):

    S + be(chia) + so + adj + that + S + V

    S + V(chia) + so + adv + that + S + V

Cấu trúc với 'too to' (quá để làm gì):

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

     S + V + too + adv + (for somebody) + to + V

Cấu trúc với 'enough to' (đủ để có thể làm gì):

     S + V + adv + enough + (for somebody) + to + V

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

Chúc bạn học tốt! Mong được ctlhn!