Either you or the headmaster___ the prizes to these gifted students at the meeting.

问题描述:

Either you or the headmaster___ the prizes to these gifted students at the meeting.
A,is handing out B,are to hand out C,are handing out D,is to hand out 求详解

D,is to hand out
临近原则:either ..or...后面的谓语与它相近的词一致.这个例子里,与the headmaster一致,所以用第三人称单数is,is to do sth 表示还没有发生的动作,而is doing 表示正在发生的事儿.这句话的意思表示给那些学生发奖的动作还没有发生,所以用D不用A.