The search proved difficult.这句话为什么不用被动语态

The search proved difficult.这句话为什么不用被动语态 the search proved difficult ,这句话是怎么回事?difficult不是形容词吗?为什么可以这 The search proved difficult,为什么不是The search was proved diffi the search proved difficult ,to mention imaginary ,为什么形容词dif 新概念英语上一句The search proved difficult.这句话翻译是“搜寻工作很难”,但是prove后直 The search proved difficult和The search proved to be difficul 请问以下这句话为什么不用被动语态?All things considered,the planned trip had 这句话从句that..为什么不用被动语态呢 the door opened为什么不用被动语态? 关于prove的问题The search proved difficult.的意思为什么是“事实上搜寻很困难”prove 请问这句话为什么不用被动语态? The hunt for the puma began in a small villa 请问这句话为什么不用被动语态?The hunt for the puma began in a small villag