I was really anxious about you. You______home without a word.

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问题 I was really anxious about you. You______home without a word.

选项 A、mustn’t leave
B、shouldn’t have left
C、couldn’t have left
D、needn’t leave

答案B

解析 “should+不定式完成式”表示本应该做而实际上没有做,其否定形式表示某种行为不该发生但却发生了,有“埋怨”的意思。“couldn’t have done”表示某种行为不能发生但却发生了。
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