Eight hours of sleep is enough.为什么用is 不用are.细节决定成败.那Eight hours o_英语解答

Eight hours of sleep is enough.为什么用is 不用are.细节决定成败.
那Eight hours of tasks are/is enough 请赐教.

人气：322 ℃　时间：2020-03-25 06:21:45

解答

sheep作主语,eight hours是修饰它的,后一个用are.因为tasks是复数