问题
选择题
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
答案
答案：B
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。