英语语法分析

There was a murder in London yester day.

昨天伦敦发生了一起谋杀案。

It must have been raining here yester night.

昨晚这儿一定是下过雨了。

She has remained where I stood yester day for an hour.

她一直在我昨天站的地方站了一个小时。