it is said that they are to hold a boat race on the river outside_英语解答

it is said that they are to hold a boat race on the river outside their university.
为什么用are to 而不是用were about to

人气：373 ℃　时间：2020-04-07 07:53:48

解答

还没发生陈述的事实据说什么 are to 相当于 are going to 是打算即将