单选题 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

【正确答案】 B

【答案解析】[解析] 我真的为你着急。你不该不说一声就离家。
[考点] 词语用法
[解析] “should have+-ed分词”结构用来表示“应该已经……”，“本来应该……”，即过去该做某事但实际没有做，其否定式“shouldn't have+-ed分词”意为“本来不应该……”，即过去不应该做某事实际却做了。