Choose the correct preposition and complete the sentences

• through
• across
• up
• on
• onto

1. He gets his subjects to open [ ] by spending time with them.
2. The photographer took a picture of a man picking [ ] rubbish for food.
3. By accident he came [ ] a group of families living in shacks.
4. He didn't think about where he was going; he just left [ ] a whim.
5. He held [ ] the edge of the building and took the photo.