◎ 题干
- What's up? You didn't pick up the phone just now.
- I'm sorry that I     dancing with music on, but it's done now.
A.practisedB.was practisingC.am practisingD.have practlised
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“- What's up? You didn't pick up the phone just now. - I'm sorry that Idancing with music on, but it's done now.A.practisedB.was practisingC.am practisingD…”主要考查了你对  【一般现在时】【将来进行时】【过去完成进行时】【过去将来时的被动语态】  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。