—There’s someone knocking at the door. Who could______be?—I have no idea.

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问题 —There’s someone knocking at the door. Who could______be?—I have no idea.

选项 A、he
B、it
C、she
D、that

答案B

解析 本题考点是代词it的用法。在there be句型中应用it来指代主语部分,它所构成的反意疑问句也是这样,当不明确某人身份时,通常用中性代词it来指代某人。如:There is nobody in the room,isn’t it?此句中因为代词指代的是“someone knocking at the door”,因此用it,所以选项B为正确答案。
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本试题收录于: 英语题库普高专升本分类
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