The answer you are looking for is "habla".
In spanish, you conjugate words to fit the context of people. The majority of verbs are conjugated by removing the "AR", "ER", or "IR" at the end of the verb.
- I (Yo): Add an "o" to the end.
- You (Tú): Add "as" for "AR" verbs, or "es" for "ER" and "IR" verbs.
- He, she, you, it (Él, ella, usted): Add "a" for "AR" verbs or "e" for "ER" and "IR" verbs.
- We (nosotros): Add "amos" for "AR" verbs, "emos" for "ER" verbs, and "imos" for "IR" verbs.
- They, you all (Ellos, ellas, ustedes): Add "an" for "AR" verbs, and "en" for "ER" and "IR" verbs.
Since you don't know who the subject is, you'd use the "él, ella, usted" conjugation since the subject would be "it". Thus making the answer Habla.
I hope this helps!