Two days_________ enough for me to finish the work.I need a third_英语解答

Two days_________ enough for me to finish the work.I need a third day.
为什么是isn't不是aren't啊?two days已经是复数了啊?

人气：412 ℃　时间：2019-12-09 03:14:48

解答

表示时间,距离,金钱和重量等作主语时谓语动词要用单数,故是isn't
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