问题描述：
I have two pens.One is black,_____is blue.
A.the other B.another C.other D.the others
说明一下原因,另外如何区别other,anther,the other.
xiexie
A.the other B.another C.other D.the others
说明一下原因,另外如何区别other,anther,the other.
xiexie
问题解答：
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