He is the only one of the people here who how to operate the computer.A. knows B. know C.

问题补充：

He is the only one of the people here who how to operate the computer.

A. knows

B. know

C. had known

D. known

答案：

(答案→)A. knows

B. know

C. had known

D. known

解析：考查主谓一致：先行词是students指人，所以用who或者that，由于前面有the only one，所以谓语动词用单数形式。句意：他是唯一知道怎么操作电脑的人。选A。