你去上海干什么？

Nǐ qù Shànghǎi gàn shénme?

What are you doing in Shanghai?

这么晚了，你还在学校干什么？

Zhème wǎn le, nǐ hái zài xuéxiào gàn shénme?

It's so late; what are you still doing at school?

这么晚了，你还在干什么？

Zhème wǎn le, nǐ hái zài gàn shénme?

It’s so late, what are you still doing?