问题
下列四旬是“这本书我已经买了三个月了”的英译文，哪一种译法不对？ __________
A: I have had this book for three months.
B: I have bought this book for three months.
C: I bought this book three months ago.
D: It is three months since I bought this book.
B: I have bought this book for three months.
C: I bought this book three months ago.
D: It is three months since I bought this book.
正确答案是：
