英语It is imperative that this mission not fail为什么是It is imperative that this mission not fail.而不是It is imperative that this mission don't fail.

英语It is imperative that this mission not fail为什么是It is imperative that this mission not fail.而不是It is imperative that this mission don't fail. it is imperative that? 为什么是It is imperative that this mission not fail.而不是It is imperative that this mission don't fail. it is imperative that you ___there in person. it is imperative for us to remain on good terms imperative imperative It is imperative that we should practise criticism and self-criticism.书中例句,practise criticism 〓学英语学到不想睡觉了It is imperative that you_______________here in time.A.shall arrive B.must arrive C.could arrive D.arrive 请选择,请说明这题考察什么 it is imperative that you include our office and escrow number on your wire remittance求翻译 It is imperative that you ___ here in time(a)shall arrive(b)must arrive(c)could arrive(d)arrive Calling ratification a national security imperative解释一下Calling ratification a national security is imperative 英语翻译It is imperative to have a well defined system turnover process to ensure configuration controlof plant systems is established at the commencement of testing. it is imperative on us （ ） A.to be tolerant of him B.that we should be tolerant of him 选哪个?为什么? Therefore,it is imperative for us to take drastic measures to put an end to 后面接什么是短语还是句子?希望给几个例句 It is imperative that students ____ their term papers on time.A.hand in B.would hand in C.have to hand in D.handed in It is imperative that这啥意思It is imperative that the frequency of trade necessitates more transportation facilities such asships,planes and cars 这句话怎么理解,这是老师给我的作文写的一句评语我的原句是这个：As we al imperative是什么意思?剑桥国际英语教程3的练习册中讲到:Use an imperative:please lend me a dollar.