UC知道14. What they need at present ____ (be) science and technology.
来源：百度知道 编辑：UC知道 时间：2024/06/19 14:56:11
14. What they need at present ____ (be) science and technology.
怎么填,为什么?
怎么填,为什么?
What （they need） at present is (be) 【science and technology】.
What才是真正的主语，后面方框内为宾语。
is
What they need at present (is) science and technology.
is！
因为 be 是 is 的母词。
what引导的名词性从句,做单数理解,所以后面的be型要用is
is.what 做主语时,动词用单数形式,主谓一致原则.
What they need _____ more people.
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What do they mean?
what did they chat
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