Which preposition or adverbial particle, if any, is right in each ---? Decide and pull down the list to see the answers.
The floor is always covered --- boxes, piles of papers, folders, ..... The floor is always covered in boxes, piles of papers, folders, .....
I have made a resolution to work harder from now ---. I have made a resolution to work harder from now on.
I feel I need to compensate --- not having worked enough this term. I feel I need to compensate for not having worked enough this term.
Sometimes I stay --- the Institute reading my book ..... Sometimes I stay at the Institute reading my book .....
I need grammar --- my final objective, which is to translate ...... I need grammar for my final objective, which is to translate ......
I think I must have sent it --- your old address. I think I must have sent it to your old address. More? Back?