◎ 题干
— I heard the phone ringing in the office next door.
— You ________ it. They haven't got a phone yet. 
[      ]
A. couldn't have head      
B. couldn't hear
C. wouldn't have heard        
D. didn't hear
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“— I heard the phone ringing in the office next door.— You ________ it. They haven't got a phone yet.[ ]A. couldn't have headB. couldn't hear C. wouldn'…”主要考查了你对  【情态动词】【现在完成时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。