Two people are talking about their social lives. Notice the difference in tone!
Select ALL the sentences where the determiner matches the intended meaning.
The correct answers are "I have a few close friends, so I'm happy." and "I have few close friends, so I often feel lonely."
A few = a small number, but enough (positive nuance). Few (without "a") = almost none (negative nuance). The determiner must match the speaker's intended feeling!