◎ 题干
It is estimated that considerable amounts of money______needed for the construction of the 
underground.
[      ]

A. has been
B. were
C. are
D. is being needed

◎ 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“It is estimated that considerable amounts of money______needed for the construction of theunderground. [ ]A. has been B. wereC. are D. is being needed …”主要考查了你对  【一般现在时】【主谓一致】  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。