Mary: Are you in a band, aren't you?
Nack: Yes, I'm in a band.
Mary: How long have you being in the band?
Nack: It's almost 4 years.
Mary: Are you in a band, aren't you?
Nack: Yes, I'm in a band.
Mary: How long have you being in the band?
Nack: It's almost 4 years.