The explanation about 'how long' (when hovering on it with the cursor)mentions 'am faint o amser', but the answer 'Am faint o amser bydd hi'n para.' is considered as wrong. Why?
Hefyd, ydy 'Pa mor hir bydd hi'n para' yn derbyniol?
Like Adams861 I would like to know if you can use "Pa mor hir" instead of "Am faint"?