1. Palabra interrogativa ‘WHO’ (Quién)
‘WHO’ refers to people (personas):
Uso en preguntas con TO BE:
WHO + am, is, are + I,
he, she, it,
you, we, they

2. Questions and answers
Who am I ? >> You’re the teacher
Who are you ? >> I’m your student
Who is he ? >> He’s Albert
Who is she ? >> She’s Paula
Who is it ? >> It’s Helen!
Who are we? >> We’re the best
Who are you ? >> We’re Samuel and Susan
Who are they ? >> They’re my friends