I don't think it very expensive to buy a family computer here. -- Really? I'll buy next w

问题补充：

I don think it very expensive to buy a family computer here.

-- Really? Ill buy next week.

A. it

B. this

C. one

D. mine

答案：

A. it

B. this

(答案→)C. one

D. mine

解析：可联系答.案.网客服索取。