题目内容
—Is this your pencil box?
—________.It's mine.
A.Yes,it is B.Yes,this is
C.No,this isn't D.No,it isn't
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题目内容
—Is this your pencil box?
—________.It's mine.
A.Yes,it is B.Yes,this is
C.No,this isn't D.No,it isn't