單數。either of的意思是：pron.任何一個。例句：You may take either of the roads.兩條路你隨便走哪一條。either of 表示“兩者之一”，其后謂語動詞用單數。

either of例句

Does either of the parties want to stop the fighting?

雙方中沒有一方想停止戰斗嗎？

She drove away before either of them could speak again

沒等他倆中任何一人再開口，她就駕車而去。

Do either of you smoke cigarettes or drink alcohol?

你們倆有人吸煙或喝酒嗎？

Mary was a better rider than either of them and she excelled at outdoor sports

瑪麗的騎術比他們倆都要好，而且她擅長戶外運動。

In Britain, we have so far escaped, in large measure, either of these afflictions.

在英國，我們迄今為止已經遠遠地避開了這兩類麻煩。