题目内容
改写句子
They didn't catch the Y7 train on the way back home. (保持原句意思)
They ________ ________ catch the Y7 train on the way back home.
答案:failed,to
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题目内容
改写句子
They didn't catch the Y7 train on the way back home. (保持原句意思)
They ________ ________ catch the Y7 train on the way back home.