'let', 'make' or 'have something done'? <> deutsch 'lassen'!

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Use past tense forms throughout the text!

1. Most European settlers, who came to the Americas, didn't the natives, whom they called Indians, live in peace.
2. In Central America they the Indians work in gold and silver mines.
3. The European overlords their churches and towns built by Indians.
4. They soldiers torture those Indians who refused to work for them.
5. They the Indians work for them even after slavery had been abolished.
6. In the place of the Indians they black slaves imported from Africa.
7. They didn't the black slaves learn how to read or write.