She is busy now.

她正忙着呢。

May I please speak to Ling Ling?

我可以和玲玲讲话吗？

Yeah, and I have to finish this report by four.

是，我在四点之前得完成这个报告。

I'd like to see the doctor at the earliest possible time.

我想尽快看医生。

I just want to confirm that the arrangements have been made.

我要确认所有计划都安排好了。

Why not?

为什么不能？