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。