◎ 题干
— People find it hard to get across the river. 
— I think at least two bridges _____ over it.

[     ]

A. need
B. are needing
C. will need
D. are 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“—People find it hard to get across the river.— I think at least two bridges _____over it. [ ]A. need B. are needing C. will need D. are needed …”主要考查了你对  【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。