◎ 题干
A large number of engineers _____ to Africa by our government to help the people there every year.
[     ]
A. have sent
B. will send
C. are sent
D. will be sent
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“A large number of engineers _____ to Africa by our government to help the people there every year. [ ]A. have sentB. will sendC. are sent D. will be sent …”主要考查了你对  【被动语态】【一般现在时】  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。