Don't be upset.If winter comes,can spring be far behind?When it's spring,trees turn green.
问题描述:
Don't be upset.If winter comes,can spring be far behind?When it's spring,trees turn green.
Just wait for some time,Three months ____ (be)NOT too long.
答
is 把三个月看成是一个整体.谓语用单数.那什么时候应该用are