英语问题the search proved difficult,请问这里面proved是不及物动词吗?不及物动词的话后面

The search proved difficult,为什么不是The search was proved diffi The search proved difficult和The search proved to be difficul 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 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 ,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.这句话为什么不用被动语态 the search proved difficult ,to mention imaginary ,为什么形容词dif the operation proved to be very difficult.it proved to be __ invite是及物动词还是不及物动词?是不及物动词的话后面加什么介词? The job proved to be much more difficult than I________ cancel可以当不及物动词吗.It will be canceled 这里的 cancel 是不及物动词吗. 英语翻译proved 在这里是生麼意思?这是省略句吗?