If she     that Mary would come to see her, she would never have gone to the party.

—Lucy doesn’t mind lending you her dictionary.—She       .I have already borrowed one.

Without the timely aid from different provinces, the affected people in those areas ________ the difficulty.

Often, when he ______ something that ______ him, he wasted his time drawing some little pictures. 

Had I known about this computer program, a huge amount of time and energy________.