Soru: Choose the correct option to complete the sentence: "If I ______ harder, I would have passed the exam."
A) studied
B) had studied
C) study
D) am studying
Çözüm: This is a type 3 conditional sentence, which refers to an unreal past situation. The correct structure is "If + past perfect, would have + past participle." Therefore, the correct answer is B) had studied.