—I haven't got a mobile phone.—I think you should have . It's useful for you.A. oneB. this

问题补充：

—I haven got a mobile phone.

—I think you should have . Its useful for you.

A. one

B. this

C. that

D. it

答案：

(答案→)A. one

B. this

C. that

D. it

解析：可联系答.案.网客服索取。