You could use RTP.
You could also use Segmentations if you do not have RTP. Just do this:
- Language Segmentation based on Country, Inferred Country
- In your LP, create Dynamic Content for the sections to modify for the lead.
- Create appropriate Segments with each Language
- Test if you can.
- Run.
RTP works on Inferred Country and *may* be more powerful in this regard, however, it is designed to run in blocks on your page, not necessarily to work like dynamic content.