Ответ:

Не уверена, что в задании имеются в виду именно такие структуры (здесь надо смотреть, что именно вы проходите), но как минимум такой вариант подходит (через слэш несколько возможных вариантов):

1. The handwriting is so bad that I can't understand it. / The handwriting is too bad for me to understand.

2. I'm so fat that I can't wear this dress any longer. / I'm too fat to wear this dress any longer. / I'm too fat for this dress.

3. I haven't got enough money to be able to buy him a present I'd like.

4. There aren't enough beds for all people to sleep here.

5. They are so clever that they always get the highest marks at school. / They are clever enough to get the highest marks at school.

6. There were so many trees that I couldn't ride my bike easily. / There were too many trees to ride a bike easily.

7. Peter's got so many records that you can spend a whole day listening to them. / Peter's got enough records to spend a whole day listening to them.

8. My father's got so much work during the week that he can't pay any attention to me. / My father's got too much work during the week to pay any attention to me.

9. I haven't got enough money to go out.

10. She's too clever to do such a stupid thing.

11. You've got enough toys to enjoy yourself.

12. This exercise is easy enough for me to do it. / This exercise is so easy that I think I can do it.

13. My suitcase is light enough for the child to carry it. / My suitcase is so light that the child can carry it.

14. I'm too excited to think. / I'm so excited that I can't think.

15. Those cups are too little to put coffee in them. / Those cups are so little that you can't put coffee in them.