I felt nervous because I was soon______(leave)home for the first time.

分类: 作业答案 • 2021-12-03 12:03:24

问题描述：

I felt nervous because I was soon______(leave)home for the first time.
答案为什么是to leave?为什么不能是leaving?

答

be to do 表将来,但是过去进行时不能表将来.过去进行时可以表示将来的吧只能用现在进行时表将来。