Go to bed early and wake up early ___(be)good for our health.

问题描述:

Go to bed early and wake up early ___(be)good for our health.

are
早睡早起对我们健康有利Go to bed early and wake up early是个词组吧?为什么用are不用is呢注意前后两个动作是用and连接的无论其前后是单还是复数,此时都为复数,所以用are如果改成To go to bed early and wake up early……,是不是就要用is了呢?对,相当于前面一个句子做主语,所以可以用is