主名词从句中什么时候用疑问句语序例如Has it been announced when the planes are to take off?不是从句中只能用陈述句语序吗?

分类: 作业答案 • 2021-12-19 11:51:03

问题描述：

主名词从句中什么时候用疑问句语序例如
Has it been announced when the planes are to take off?不是从句中只能用陈述句语序吗?

答

是的!有时候口语里会比较随意.