I still do not fully get this rule. The difference between this house is spacious and this is a spacious house.
This is a spacious house: هٰذا بَيْت واسِع
This house is spacious: هٰذا اَلْبَيْت واسِع
The difference is the "اَلْ" as mentioned in the 'tips and notes' of this lesson
Even me here didn't get how they commit the rule
Why does "wide" not work here?
What is the difference between "This house is spa ious" and "This is a spacious house."? I think they express same meaning.