El, la, los, and las are all definite articles, and un, una, unos, unas are all indefinite articles.
Definite articles such as “the” in English refer to a specific noun or one already known by the reader. Indefinite articles such as “a” in English are used with nouns that are general or when their identity is not known.
While you are passing someone on street you say Adios. This word usually means "Good-bye," but in this case it will mean as a general greeting .
Answer:
Que Hicieron?
Explanation:
que hicieron? fueron a la Alambra
The answer to your question is A “tengo ganas de” :)