Questions & Answers about Mahaba ang daan.
Because Filipino often puts the predicate first.
In Mahaba ang daan, the predicate is mahaba and the topic/subject-like part is ang daan. So the structure is more like:
- long
- the road
In natural English, we usually say The road is long, but in Filipino, predicate-first order is very common.
Ang is a marker for the topic or subject-like noun phrase of the sentence.
In this sentence, ang daan is the noun phrase being talked about. So ang tells you that daan is the main thing the sentence is about.
It is not exactly the same as English the, although it is often translated that way in simple sentences.