◎ 题干
The manager was worried about the press conference his assistant ______ in his place but luckily, everything was going on smoothly.
A.gave B.gives C.was giving D.had given
◎ 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 manager was worried about the press conference his assistant ______ in his place but luckily, everything was going on smoothly. A.gave B.gives C.was giving …”主要考查了你对  【一般现在时】【将来进行时】【过去完成进行时】【过去将来时的被动语态】  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。