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The picture looks good ____ the white wall.

She sat on the top of the stairs _____ her head on her crossed arms and cried.

He has worked         the maths problem for nearly an hour but he simply can’t work it      .
On ;at           B. on ;out            C. at ;up              D. for ;out

_____ working ability，you are no worse than the others，it is just you who don’t put your heart in your work．

— Would you like some more chicken?
— No thanks. I am       a diet and I’m trying to       weight.

Nowadays it’s hard for an ordinary family to stay      if they buy a new house.

We have brought in a good grain harvest for three years_________.

My friend warned me ______ going to the East Coast because it was crowded with tourists.

______ property, we’re among the richest people in this city．

What was your impression ______ him the first time you met him?