Gwallau Cyffredin Sylfaen

Cyflwyniad PowerPoint i'ch helpu gyda rhai o'r gwallau mwya cyffredin ar lefel Sylfaen.

A PowerPoint presentation to help you with some of the most common mistakes at Sylfaen Lefel.

Powerpoint 2007 presentation

Click Gwallau Cyffredin Sylfaen.pptx link to view the file.