根据句意,选词填空It's five o'clock.We are going to (is/be) late.
问题描述：
根据句意,选词填空It's five o'clock.We are going to (is/be) late.
答
It's five o'clock.We are going to (be) late.
知识点：be going to do sth 将要做某事,这里用原型,因此选择be