麻烦老师解答：It is necessary that

麻烦老师解答：It is known that wat 麻烦老师解答：It's a pity that I m 英语语法问题 it is necessary that It is necessary that he (take) _take__some it is necessary that the plan__before june i think it is necessary that. and that. it is clear that sleeping is necessary to everyone 麻烦老师解答：That's really ______ It is necessary that he (should) come to our TESTFOUR 19.it is necessary that one an entrance examination It is important and necessary that one----a foreign language 英语翻译It mistakes something that is necessary for its conclusi