Which example has an incorrect shift in mood?

Responses We should go to a movie, but we should have dinner first. We should go to a movie, but we should have dinner first. - no response given We are going to the store, or we might get coffee. We are going to the store, or we might get coffee. - no response given Do you want to go to bed? Do you want to go to bed? - no response given We might enjoy the book, but we might not.

We should go to a movie, but we should have dinner first.

are you sure

My apologies, I misunderstood the question. The correct answer is: We might enjoy the book, but we might not. This example has an incorrect shift in mood because it goes from the possibility of enjoying the book to the possibility of not enjoying it.