know/your best friend
How long have you known your best friend?
learn/English
How long have you learned English?
use/ Whats app
How long have you used Whats app?
use/Instagram
How long have you used Instagram?
have/your mobile phone
How long have you had your mobile phone?
know/your English teacher
How long have you known your English teacher?
live/in this sity
How long have you lived in this city?
have/current hair cut
How long have you had your current hair cut?
have/your pet
How long have you had your pet?
ride/a bike
How long have you ridden your bike?