It is perhaps clearer in other languages, but conjugated verbs in English<span> can also sometimes tell us something about how many people are participating in the action of the </span>verb<span>. For example, singular subjects (he, she, it) in the present simple tense have an “s” added to them when </span>conjugated<span>: He sings. She reads.</span>
"Como estas" is the correct answer to be put in the blank.
