英语翻译这座博物馆是免费开放的你们到中国多久了你们去过中国其他的城市吗我们先去博物馆还是园林呢我之前只来过这里一次我在上

This museum is free to everyone
How long have you been to China?
Have you been to other cities of China? or Have you been to China's other city?
Shall we go to museun or garden first ?
I have been here once
I have been here when I was in primary school
You come when volunteer is school requirement or voluntary?
... Is the most developed place of the city