Yourparentswerereallyanxiousfroyou.You

问题详情：

 Your parents were really anxious fro you. You _____ home without a word.

   A. shouldn’t have left    B. couldn’t have left    C. mustn’t have left    D. needn’t have left

【回答】

A

知识点：虚拟语气与情态动词

题型：选择题