How do I play the Sims 3 if I've lost my last expansion pack?

[DomiyuPL]

Dang. Seems like my games are comepletely lost. I reminded myself when I was looking for codes and cloud not find them except two and one wich I had installed (By the way I discovered games that I did not play a long time and I forgot they existed like SimCity 3000 Unlimited. Seems like I knew Sims before I discovered The Sims series. My first TS was The Sims 2. Back to the subject -------->) that I was reseting my PC after I got all DLC installed. Man. I had almost all DLC of main not stuff DLC.