13．I can't think of any possibleexplanation（解釋） for his absence．

分析 我想不出任何他缺席的解釋．

解答 答案是explanation．考查翻譯填空．句意是"我想不出任何他缺席的解釋．"所以形容詞possible后面接名詞explanation表示"解釋"．故答案是explanation．

點評 本題考查翻譯填空．首先要判斷填寫的單詞及固定搭配，然后根據(jù)句意和相關(guān)語法填寫正確的答案．

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