i don't know what i shpuld do next time.改为简单句let's visit beijing this summer holiday改为反意疑

i don't know what i shpuld do next time.改为简单句let's visit beijing this summer holiday改为反意疑

I don't know what to do next.
Let's .,shall we?

i don't know how do next time.
let's visit beijing this summer holiday，shall we？

I don't know what to do nest time .
shall we ?
祝学习进步！