题目

I was really anxious about you. You _____ __ home without a word. A. mustn’t leave     B. shouldn’t have left      C. couldn’t have left    D. needn’t leave 答案：B 解析: 从题意分析，对方没有打招呼就去了，造成的结果是I was really anxious,故B表示过去不应不打招呼就走。

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