L1A Visa PED expired but have valid i-94 , can we apply for f1/cpt now?

Hi - can some help to know this info

1.Have valid i-94 until April 2020

2.PED expired May 2018

3.In june company tried to apply for renewal & got RFE with more docs

4.Current client offering full time if have valid visa

Can I apply for F1/CPT and move to full time with client ? or do i need to go back to my country as no valid visa