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Câu hỏi:

04/07/2026 4 Lưu

_______, he would have been able to pass the exam.

A. If he studied harder last year

B. Provided he studied hard last year

C. Studying harder last year 
D. Had he studied harder last year

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Trả lời:

verified Giải bởi Vietjack

Đáp án: D