自从升职后，他比以前更忙了。

He's much ___busier now after getting promoted.

超市在节假日总是格外忙碌。

The supermarket is always much ___busier during holidays.

自从她换了新工作后，她的手机收到的消息更多了。

Since she started her new job, her phone has been ___busier with messages.