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試題詳情
When Wilson returned home from hospital two months later,his parents attempted to find a way to deal with the catastrophe that had happenedhad happened(happen) to their lives.
【考點(diǎn)】過去完成時(shí).
【答案】had happened
【解答】
【點(diǎn)評(píng)】
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發(fā)布:2024/8/6 8:0:9組卷:0引用:0難度:0.9