your best friend / know / you?
How long has your best friend you known you?
you / have / an e-mail address?
How long have you had an e-mail address?
your English teacher / teach / you?
How long has your English teacher taught you?
your mom / drive a car?
How long has your mom driven a car?
you / read books?
How long have you read books?
you / live / in this city ?
How long have you lived in this city?
you / have / your phone?
How long have you had your phone?
you / study / English?
How long have you studied English?
you / be awake today?
How long have you been awake today?