Question

观察下列句子，试着归纳其画线部分所包含的句型结构。

1．Wait a moment, please．I think the manager will come back in ten minutes．

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2．The boy with big eyes is my brother, who is already 15 years old．

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3．Passing by a restaurant, he heard someone singing inside．

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Answer 1

答案：
解析：

1．“in＋一段时间”用在将来时态的句子中，表示“在……之后”。 　　2．with短语作后置定语。 　　3．hear sb．doing sth．听到某人正在做某事。