20. She passed the exam _____ accident — she had not studied at all.
(A) by
(B) on
(C) in
(D) at
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統計: 尚無統計資料
統計: 尚無統計資料
20. She passed the exam _____ accident — she had not studied at all.
(A) by
(B) on
(C) in
(D) at