Good thing PRC has a consulate in Toronto, and also operates a visa processing office. Make yourself two passport photos, print out your travel itinerary, and do this right away. There is still time.

added: Just looked at your profile -- If you are a U.S. passport holder living in Michigan, then your assigned consulate for visa processing is in Chicago. Either get there pronto for a day or two, or find a local China visa agent. You don't have much time.