Are you still working ..... the same design or have you finished it?

(A) on

(B) over

She gets very stressed up and goes running in order to work ..... all her negative energy

(A) in

(B) off

My daughter spent twenty minutes working ...... the answer to a maths question

(A) in

(B) out

She spent a couple of hours working ....... the answers to the crossword puzzle

(A) out

(B) in

After work we go to the gym and work .......

(A) at

(B) out

It took her three years to work ....... her debts after university, but now she doesn't owe anyone anything at all

(A) in

(B) off

The company's working all its employees ...... death

(A) out

(B) to

She doesn't like the idea, but if we work ..... her, she might change her mind

(A) out

(B) on

She gets very worked ..... and loses her temper easily if she doesn't win

(A) out

(B) up

She started work for ICI three years ago

(A) She has worked for ICI for three years

(B) She works for ICI for three years