Whoever does not have a mobile phone must borrow because you will certainly need for the

问题补充：

Whoever does not have a mobile phone must borrow because you will certainly need for the tour.

A. one; it

B. it; one

C. it; it

D. that; this

答案：

(答案→)A. one; it

B. it; one

C. it; it

D. that; this

解析：考查代词用法辨析。第一空的one指代可数名词单数形式，表示泛指；it指代上文出现的同一事物。句意：任何一个没有手机的人都要借一部手机。因为在旅游的时候，你一定需要它的。故A正确。