it's necessary that the problem__in some way or othera.is settling b.was settled c.be settled c.has been settled括号内选哪个 表示哪种虚拟语气的用法

it's necessary是什么意思 it's important/ necessary ...+that 后面该怎么加虚拟语气? it's necessary that you____the entrance examination为什么要用should be不用must be _______ necessary that you hand in your homework on time every time.A That's B It's I find it necessary to know more about other countriesit necessary 不应该是it's necessary. 英语语法改错 We consider necessary that the instrument英语语法改错We consider necessary that the instrument should be adjusted each time 答案是在necessary前加it 为什么不能加it's It's necessary to learn English well. 翻译it's not necessary to hurry It's necessary这是什么形式? It's not necessary _________________(相同的) I find it necessary to tell him about it.把 it necessary to tell 换成 that necessary to tell It's necessary that an efficient worker____his work on time.A.accomplishes B.can accomplish C.accomplish D.will accompilsh It 's necessary that 主 （should） do是什么结构啊,有什么说法吗如题l45 18 it's necessary for you to give up smoking(保持句子原意) it's necessary ____you____smoke we think that is necessary还是we think that it is necessary His friends find____him everything that has happened A.it necessary to tell B.that necessary totell C.necessary it to tell D.necessary to tell It's necessary / important / essential that we (should) clean the room every day.句中的that有什么用?句中没有那个that行不行? I find ( ) him all about it.A.necessary to tell B.that necessary to tell C.necessary it to tell D.it necessary to tell