Tom failed the exam because he didn’t study hard.
A. If Tom had studied hard, he wouldn’t have failed the exam.
B. If Tom didn’t failed the exam, he would study hard.
C. If Tom hadn’t failed the exam, he would have studied hard.
D. If Tom studied hard, he wouldn’t fail the exam.
Giải bởi Vietjack
Đáp án là A.
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