SAT Reading & Writing · Form, Structure, and Sense

Unaware that the bridge had been closed for repairs, ______

Unaware that the bridge had been closed for repairs, ______

Which choice most logically and grammatically completes the sentence?

Answer and explanation

Answer: C: the delivery driver continued toward the closed route before finding a detour.

The opening phrase "Unaware that the bridge had been closed for repairs" describes a person capable of being unaware of something, so it must attach to a noun naming that person immediately after the comma. Only the delivery driver fits. A and D both place something other than a person right after the comma, which would illogically suggest a detour or a route was itself unaware of the closure. B supplies no noun at all after the comma for the opening phrase to attach to.

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