◎ 题干
—_____ the population of the U.S.A. in 2005?
—It _____ about 296 million.
A. What is; is     B. What was; was     C.How many was; was
◎ 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“—_____ the population of the U.S.A. in 2005?—It _____ about 296 million.A. What is; is B. What was; was C.How many was; was…”主要考查了你对  【一般现在时】【过去进行时】【过去完成进行时】  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。