I have been playing piano for almost 7 years. I am trying to learn "Flight of the Bumblebee", Rachmaninoff version. The problem is that the left hand has certain chords that my fingers cannot reach. There is AEC#, C#AE, F#ADA, and maybe more. I am able to reach an octave and one note over an octave, but thats it. I have tried compromising notes to fit my finger length, but it makes the song sound different. I don't know what to do, because this is an an assignment that is due on May 31.
Very large chords like the one you mention are quite common in fact in classical romantic music piano literature.
Basics about this issue is, play like an arpeggio (alephzero answer). Most pianists do that indeed. This is absolutely normal, as even pianists with very long fingers can't reach some insane chords (see image; La Campanella from Lizst).
One practical way of doing this is simply working on hand/wrist (and not fingers) movement. Just bring the fingers in order for them to do their job with the help of your entire arm.
Just play the chords that you can't reach as arpeggios (rolled chords). When you get the piece up to the correct tempo, nobody will notice. For consistency, you might want to roll some of the chords that you can reach, as well as the ones you can't.
(The score is here: http://imslp.org/wiki/Special:ImagefromIndex/99876)