---David,what'sthisinEnglish?---________．A.ThisisaballB.ItisballC.That

发布时间：2020-08-07 01:35:12

---David, what's this in English?---________．A.This is a ballB.It is ballC.That is a ballD.It's a ball

网友回答

D解析用it替代this/that, ball为单数加a．
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