Bộ 10 đề ôn thi học sinh giỏi Tiếng anh lớp 9 có đáp án (Đề 1)

She ran in a marathon last week but dropped …………………..after ten kilometers.

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She ran in a marathon last week but dropped …………………..after ten kilometers.

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Giải thích

She ran in a marathon last week but dropped out after ten kilometers.