Which phrase refers to the contrast what is expected to happen and what actually doee happen?

It refers to a specific situation or event. ... Dramatic irony is when the audience knows a key piece of information that a performer on stage does not

The connection that can be made between european treatment of colonial native populations and the character of Caliban is The European took away the native population's freedom and Prospero, one of the character in Caliban took away Caliban's freedom. I hope this helps out :)