◎ 题干
I think students _______ to do homework with friends.
[     ]
A. should allow
B. should be allowed
C. were allowed
D. must be allowing
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“I think students _______ to do homework with friends.[ ]A. should allowB. should be allowedC. were allowed D. must be allowing …”主要考查了你对  【情态动词】【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。