Question

preguntas y respuestas con since and for

Answer 1

How long have you been waiting? I've been waiting since 6:00 a.m
How long have you lived in this neighborhood? I've lived here for 3 years.
How long has your mother been married with your dad? They have been married for 15 years.
How long have you known your best friend? I'v known her since I was 6 years old.
How long has he been in the bathroom? He has been in the bathroom for 25 minutes.

Answer 2

Hello!

* Since when have you been in this school?

> I´ve been in this school since 1st grade of primary school.

* How long have you been studying the Japanese culture?

> I´ve been studying the Japanese culture for 5 months.

Hope helping U! :)