Both can be correct depending on how it's used.
1.What did he fail? (More natural)
He failed the exam.
Where did he fail? Which area did he fail?
He failed in the exam.
(But he did well in his classwork and attendance)
18 Temmuz 2020
1
3
1
He failed the exam (without the preposition 'in').
18 Temmuz 2020
0
1
0
He failed the exam
18 Temmuz 2020
0
0
Hâlâ cevap bulamadın mı?
Sorularını yaz ve ana dil konuşanlar sana yardım etsin!