he watches TV twice a week 为什么 twice a week 放在句末?he usually watches TV 为什么usually放在主语后?

分类: 作业答案 • 2021-12-19 16:27:05

问题描述：

he watches TV twice a week 为什么 twice a week 放在句末?
he usually watches TV 为什么usually放在主语后?

答