Abbreviations 1. Introduction 2. Passivization of DOCs 2.1 Typology of Passivization in DOCs 2.2 Previous Approaches 3. Two Structural Cases in DOCs 3.1 Two Structural Cases in Previous Studies 3.2 Two Structural Cases in Other Languages 3.3 The Structure of DOCs 4. A-movement of DOCs 4.1 The Minimalist Syntax 4.2 The Application of the Two Structural Cases 4.3 Extension of the Two Structural Cases 5. A' -movement of DOCs 5.1 Previous Approaches 5.2 Phase Inheritance-based Account 6. Conclusion References