---What'sthis?---________abook.A.ItsB.It'sC.ItD.it's

发布时间：2020-08-06 19:44:50

---What's this?---________ a book.A.ItsB.It'sC.ItD.it's

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B解析It's＝It is它是．Its它的与题意不符．
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