Identify the sentence that uses the correct tense structure for a type 3 (unreal past) conditional:

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A If you studied harder, you would have passed the exam.
B If you had studied harder, you would pass the exam.
C If you had studied harder, you would have passed the exam.
D If you would have studied harder, you would have passed the exam.

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Answer: C. If you had studied harder, you would have passed the exam.

Answer: (c) If you had studied harder, you would have passed the exam.
Explanation: A third conditional sentence discusses an impossible past condition and its probable past result. The correct grammatical structure is: If + Past Perfect (had studied), ... would have + past participle (would have passed).

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Identify the sentence that uses the correct tense structure for a type 3 (unreal past) conditional:

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