【题目】Either you or the president _______ the prizes to these gifted winners at the meeting.
A. is handing out
B. are to hand out
C. are handing out
D. is to hand out
在线课程【答案】D.
【解析】当 either …or 连接两个并列主语时，句子的谓语动词在人称和数上和后一个主语保持 一致。 “be+不定式”表示按计划或安排将要发生的动作。