单选 The manager discussed the plan that they would like to see____the next year.A.carry out B.carrying out C.carried out D.to carry out 这个定语从句 修饰PLAN,但是C为什么不是 was carried out 呢 ,plan是被做啊,被动语态怎么体现?怎么单独的一个过去分词就体现了被动呢?我从百度上也查了这题 但是这个没解释我的疑问

单选 The manager discussed the plan that they would like to see____the next year.
A.carry out B.carrying out C.carried out D.to carry out 这个定语从句 修饰PLAN,但是C为什么不是 was carried out 呢 ,plan是被做啊,被动语态怎么体现?怎么单独的一个过去分词就体现了被动呢?我从百度上也查了这题 但是这个没解释我的疑问