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主语从句的练习题,有没有英语大神会的,
_____ was once regarded as impossible has now become a reality.A.That B.Which C.Who D.What
人气:118 ℃ 时间:2019-10-26 21:18:17
解答
选D.what
_____ was once regarded as impossible这是主语从句,这个从句中缺少主语.
选项中只有what和who能单独做主语.who是指人.而这里是指事物,所以用what.
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