The problem was too difficult to be solved还是The problem was too d_英语解答

The problem was too difficult to be solved还是The problem was too difficult to solve?

人气：223 ℃　时间：2020-03-21 08:43:29

解答

用后面的.be 动词后面的形容词如果是easy/difficult等的话,动词不定式只要用主动的.