be difficult后加什么?比如：It will be difficult （ ）the team to win the next World Cup.A at B for C on D with选什么?为什么?

be difficult后加什么?比如：It will be difficult （ ）the team to win the next World Cup.A at B for C on D with选什么?为什么? It can difficult to know happen为什么要在can后加be,be有什么用 be surprised 后加什么? be动词后加什么 英语中形容词后加不定式可以做什么句子成分比如下面这句做的是什么成分?Daming found their accents really difficult to understand.可否改写成 Daming found it really difficult to understand their accents. ‘must be’后加什么 加doing your question is very difficult 后为什么加to answer而不是to be answered或answering difficult前加什么冠词 difficult to加什么词? be动词后加主语什么格?比如 我们是什么?这句话应说成：What are we?还是：What are us? be afraid后加什么从句 be good for后加什么 be told后加什么介词 be used to后加什么词性? be动词后加什么形式 be willing to 后加什么 be going to 后加什么 be good at后加什么词?