题目内容：

用适当的冠词填空,不需要可不填什么做!什么是冠词,
1.What's this?It's___book.It's___English book.
2.Is it __egg?Yes,it is.
3.Is that __her eraser?
4.It isn't __phone(电话).It is __box.
5.These are ____oranges.