1/ we 'd like to know something about the cultural groups of vietnam.
---> What would you like to know?
2/ the tay don't allow guests to sit in the room of their altar because that room is such a sacred place .
----> Why do the Tay not allow guests to sit in the room of their altar
3/ the pu peo farm on burned land and terraced fields.
----> Where do the pu peo farm?
4/ they dug canals to bring water to their rice fields.
----> What do they do to bring water to their rice fields?
5/ the Muong speak the Muong  language
----> What language do the Muong speak?