昨天你怎么了用英语怎么写

　　What happened to your grandpa yesterday?

　　昨天你爷爷怎么了？

　　Yesterday's students are today's employees.

　　昨天还是学生，今天成了雇员。

　　I took a half day off yesterday.

　　昨天我休假半天。

　　That's the direct opposite of what you told me yesterday.

　　那与你昨天告诉我的截然相反。

　　Unless I'm mistaken, she was back at work yesterday.

　　除非是我记错了，她是昨天回来上班的。

　　Who can say what will happen next year?

　　谁能说得出明年会发生什么事？

　　She gave us her version of what had happened that day.

　　她从她的角度向我们描述了那天发生的事情。