IV.
1. B -> interested
2. D -> for
3. B -> quickly
4. C -> would
5. C -> anything
VI.
1. After having finished my homework, I went to bed.
2. She is interested in reading a lot of funny stories.
3. My mother prevented me from going out.
4. The old lady warned the boy not to touch that flower.
5. My little son admitted breaking the vase.