问题
选择题
Tom is the only one of the students who a scholarship since last year.
A．has won
B．have won
C．is winning
D．wins
答案
答案：A
本题考查主谓一致。题中的先行词为one，故从句中的谓语动词用单数，再根据时间状语since last year，故用现在完成时。选 A。
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