John, look at the time. you play the piano at such a late hour? A．Must B．Can C．M

John, look at the time. ___________ you play the piano at such a late hour?

             A．Must        B．Can        C．May         D．Need

试题答案

A

解析:

        情态动词用于疑问句中表示责问，语气强烈。