句型:It is + adj. + that + S + (should) + VR. 重要的:important, imperative, vital, crucial, critical, pivotal 迫切的:urgent 必要的:essential, necessary, indispensableEx.It is essential that the letters be replied immediately. 這些信件應馬上回覆,這非常必要。
參考資料
It is imperative that Tina _______. (A)..-阿摩線上測驗