用适当的冠词填空,不需要可不填什么做!什么是冠词,
1.What'sthis?It's___book.It's___Englishbook.
2.Isit__egg?Yes,itis.
3.Isthat__hereraser?
4.Itisn't__phone(电话).Itis__box.
5.Theseare____oranges.
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