◎ 题干
—His father ______an actor ,didn't he ?  — Yes, he did .
A.used to beingB.usedC.used to be D.uses to be
◎ 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“—His father ______an actor ,didn't he ? — Yes, he did .A.used to beingB.usedC.used to be D.uses to be…”主要考查了你对  【实义动词的单数第三人称形式】【实义动词】【动词短语】  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。