Questions: Which version of the sentence uses the preposition to show location? The unexpected blackout occurred near the masquerade ball. The unexpected blackout occurred before the masquerade ball. The unexpected blackout occurred during the masquerade ball. The unexpected blackout occurred after the masquerade ball.

The answer is "The unexpected blackout occurred near the masquerade ball."

This sentence uses the preposition "near" to indicate the location of the blackout in relation to the masquerade ball.

This sentence uses the preposition "before" to indicate the time when the blackout occurred, not the location.

This sentence uses the preposition "during" to indicate the time period in which the blackout occurred, not the location.

This sentence uses the preposition "after" to indicate the time when the blackout occurred, not the location.