Agent Omission with -zai
摘要
As the first chapter of the body-part, this chapter starts from the “unexpected” agent omission case in Chinese and considers it as a result of expletivization based on various tests. Agent omission, then, challenges the cross-linguistic generalization of UEAC, and the author proposes the M parameter to account for the Chinese agent omission without denying the validity of the UEAC. After the agent omission is legitimated, the next question is when the agent omission is allowed and when it is disallowed. A link between the availability of delegation reading and agent omission is found, which leads to the proposal of the core hypothesis, the APCC. The APCC is then applied to the -zai marked cases successfully.