【题目】连词成句。
【1】this, your, book, is, (?)
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【2】That, not, my, bag, is, (.)
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【3】Is, your, this, umbrella, (?)
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【答案】
【1】Is this your book?
【2】That is not my bag.
【3】Is this your unmrella?
【解析】
略
