It is neccessary ( )some English grammar.

Some students thinks that studying English grammar is not he some questions about english grammar I found difficult to learn English grammar.A it Bthat Cit is It's neccessary for us to know some ways of____the building English grammar is very difficult.(改为感叹句) english grammar Nancy had some problems learning English grammar(同义句) it is neccessary that he (take)_____a good rest after workin To become a teacher in a university.It is neccessary to have They're some English girls.改成单数形式 是It is some English girl.对 I found that it was frustrating to learn English grammar. The student thinks it necessary to learn English grammar.