题目内容：

The teacher as well as her students _____ to visit the Moter Company tomorrow.
A.go B.are to go C.is to go D.is about to go.
为什么选C不选D?

优质解答

1 be to do:表示事先商定、安排或准备要做的事情.从句意上看visit the Moter Company是件安排好了的活动.2 be about to do:1) 表示即将发生的动作,在时间上指最近的将来2）在含有be about to do的句子中,不能再加时...