(2025 mới) Đề ôn thi tốt nghiệp THPT Tiếng Anh (Đề số 10)

I_________for my exam when the power went out. A. studied B. am studying C. have studied D. was studying

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I_________for my exam when the power went out. 

studied

am studying

have studied

was studying

Giải thích

Chọn đáp án D