◎ 题干
—How often do I need to feed the fish?
-They _______ food every day, or they will be hungry.
A.must giveB.mustn’t giveC.mustn’t be give.D.must be given
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—How often do I need to feed the fish?-They _______ food every day, or they will be hungry.A.must giveB.mustn’t giveC.mustn’t be give.D.must be given…”主要考查了你对  【实义动词的单数第三人称形式】【实义动词】【动词短语】  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。