Working permit and Residence permit expires before my contract

My working permit is going to expire in middle of June, my residence permit at the end of June and my working contract expires at the beginning of July. During the middle of June I'm in Europe, so the working permit is going to expire while I'm there and once I go back. I only have three actual working days to ask for an extension.

Can I come back to China if the Working permit has expired but Residence Permit is still valid? Can I get a one-month entry permit without leaving to finish my contract and get the severance from my employer?