Present Perfect (for/since)

I have studied English ____ 5 years.

• for

• since

I have known my best friend _____ I was nine.

• since

• for

I've lived in the same neighbourhood _____ I was born.

• since

• for

I've had the same phone number _____ 2013.

• since

• for

My parents have known each other ____ 20 years.

• since

• for

My mother has had the same haircut ____ at least 2 years.

• for

• since

How long _____ you __________ English? (study)

How long _____________ in your neighbourhood? (live)

How long __________________ your best friend? (know)

How long ________________ the same haircut? (had)