I worked as hard as I could _______ for the final exam.

I appreciate ______ the opportunity to work in your company two years ago.

I planned ________ to see you last week, but I was ill.

Fire swept through a store at the corner of 4th street this morning ________ heavy damage.

When ____ about the source of his income, he hesitated for a moment, obviously not willing to give us a direct answer.