Ayuda con estos ejercicios?

I)

1 - Nature

2 - to make other things

3 - colorful

4 - dangerous

5 - dirty

6 - destroy

7 - good

8 - food

II)

1 - incredible

2 - noisy

3 - impossible

4 - impoliteness

III)

1 - you willfeel better if you do more excersice

2 - if she don´t leave now, she will be late

3 - Jenny won´t forgive you if you don´t apologize

4 - if he need help he will call.