Multiple choice Which one of the following sentences is grammatically correct? Had you paid attention from the beginning, you should have passed. Had you paid attention from the beginning, you will pass. Had you paid attention from the beginning, you would have passed. Had you paid attention from the beginning, you would pass. None of these Reveal answer Fill a bubble to check yourself C Correct answer Explanation Case of third conditional: The use of 'had...............would have' is appropriate to present an imagined situation of the past.