Mr.Smith is trying to hire a new secretary who can both type and drive.A. oneB. the oneC.

问题补充：

Mr.Smith is trying to hire a new secretary，who can both type and drive.

A. one

B. the one

C. that

D. he

答案：

(答案→)A. one

B. the one

C. that

D. he

解析：考查代词one的用法。在这里one作a new secretary的同位语，同时one又是后面定语从句的先行词。所以选A。