-I was really anxious about you. -I’m terribly sorry.I home without a word. A．mu

—I was really anxious about you.

—I’m terribly sorry.I________home without a word.

A．mustn’t leave                                          B．shouldn’t have left

C．could have left                                         D．need have left

试题答案

答案：　B

　shouldn’t have done句意为“本不应该做而事实上做了”。