Complete the amateur baker's wild interview fantasy.

I ______ my own fancy pastry shop if I won the grand prize on The Great Baking Battle.

The correct answer is would open.

In the second conditional, when the "if" clause uses the past simple ("won") to describe an unlikely or imaginary event, the main clause requires "would" + base verb to describe the hypothetical result. Notice that the "if" clause can come at the end of the sentence without changing the grammar rules!