◎ 题干
At first, I didn’t know what______ Facebook was, and now I do know what it is. I have to say, it sounds like ____huge waste of time.
A./, theB./,aC.the, aD.a, the
◎ 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“At first, I didn’t know what______ Facebook was, and now I do know what it is. I have to say, it sounds like ____huge waste of time.A./, theB./,aC.the, aD.a, …”主要考查了你对  【不定冠词】【定冠词】【零冠词】  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。