请问有be difficult to do sth 这个词组吗?be difficult XXXXX 还有什么词组?

请问有be difficult to do sth 这个词组吗?be difficult XXXXX 还有什么词组? prove difficult 和 prove to be difficult 有什么区别?The operation proved to be difficult.Rescue operations are proving difficult. The search proved difficult和The search proved to be difficult有什么区别? be difficult to do是什么意思 prove to be difficult是什么意思? Mary found .A.chinses difficult to learn B.chinese difficult to be learntC.it difficultyto learn chinese D.herself difficult to learn chinese为什么啊 是be difficult to sb 还是be difficult for sb? People follow him everywhere .This makes his life ( )A.DifficultyB.to be difficultC.Difficult D.Is difficult It is not difficult to get to school 为什么既有be动词又It is not difficult to get to school 为什么既有be动词又有动词? 请问哪里错了It can be difficult to learn Tibetan. 英语选择题66.Tom's absence made __________to get all the work done in a single day.A.us difficult B.it difficult for us C.difficult for D.us to be difficult为什么选择D而不是B? be+形容词(difficult) to do something造句 be willing to do sth difficult是什么意思? Drops to be very difficult是什么意思 I find it difficult to be a good teacher.和I find it is difficult to be a good teacher.有什么区别?第一句的句子成分是什么？ 英语翻译A that difficult B it difficult C that be difficult D it be difficult 各个选项 the operation,which lasted for over four hours,proved to be very difficult.请问prove to be是词组还是什么,不加to be行不行 Phusics is difficult _____.A)for learning B)to be learned C)to learn D)of learning