Since vs For

He has been working as a vet _____________ 8 years

• since

• for

I have been teaching _______ 8 o'clock

• since

• for

Mary has been growing her own herbs __________ last year

• since

• for

It has been raining __________ 2 days

• since

• for

Esteban has been playing __________ 1 hour

• since

• for

Felipe has been studying ___________ this morning.

• since

• for

Denis has been taking care of Martin __________ two weeks

• since

• for

Leonel has been enjoying music __________ he was little

• since

• for

Danielle has been painting ___________ she was 5 years old

• since

• for

They have been recycling _______ last year

• since

• for