She has been a volunteer for the organization FOR/SINCE two years.
FOR
She has been the captain of the football team FOR/SINCE three years.
FOR
The new shopping mall has been open FOR/SINCE last year.
SINCE
She has studied French FOR/SINCE three years.
FOR
The school has had a drama club FOR/SINCE 2010.
SINCE
We have lived in this house FOR/SINCE a decade.
FOR
The science fair has been an annual event FOR/SINCE 2015.
SINCE
The movie has been out FOR/SINCE last month.
SINCE
He has participated in the tennis tournaments FOR/SINCE five months.
FOR
The school cafeteria has served pizza FOR/SINCE last November.
SINCE
The choir has been awarded first place in competitions FOR/SINCE last year.
SINCE
We have been friends FOR/SINCE five years
FOR
They have been involved in the student council FOR/SINCE sophomore year.
SINCE
The shop has been closed FOR/SINCE 6 o'clock.
SINCE
He has been a teacher FOR/SINCE 20 years.
FOR