what are you busy now怎么翻译？

你现在忙些什么呢？....有点小问题，最好加上with ，.....busy with....
What are you busy with now?

或者

What are you busy doing now?

honestly, "what are you busy (with) now?" is kind of Chinglish. Chinese usually use "busy" to refer to 忙什么.

as a matter of fact, English speakers tend to say "What are you up to?" or "What are you doing now?" These expressions are more idiomatic.

你现在正在忙什么？？？
祝学业有成啊

如果是有关商务工作，那么可以翻译成：最近在忙什么项目呢。

你正忙什么了