JOHN DIDN'T GO TO SCHOOL BECAUSE HE WAS SERIOUSLY ILLA. IF JOHN ISN'T...

Câu 43 : John didn't go to school because he was seriously illA. If John isn't seriously ill, he will go to schoolB. If John wasn't seriously ill, he would go to school C. If John hadn't been seriously ill, he would have gone to school B. If John hadn't been seriously ill yesterday, he would go to school nowChọn câu đúng nhất ứng với (A, B, C hoặc D) từ các từ gợi ý sau