—There is still a copy of the book in the library.Will you go and borrow?—No I’d rather bu

问题补充：

—There is still a copy of the book in the library.Will you go and borrow?

—No,I’d rather buyin the bookstore.

A. it;one

B. one;one

C. one;it

D. it;it

答案：

(答案→)A. it;one

B. one;one

C. one;it

D. it;it

解析：it指代上文所提事物的本身。one常用来代替与上文所提到那类人或物被替代者为可数名词单数形式。it指上文中a copy of the book。one指在书店买了一本。