Not unless i have an amazing stroke of luck!It's very unlikely that anything like that will

Not unless i have an amazing stroke of luck!It's very unlikely that anything like that willhappen 特别是前面的Not unless Not unless i have an amazing stroke of luck!It's very unlikely that anything like that will if…not与unless在这里都能用吗?I'll be surprised if he doesn't have an accident.I'll be surprised unless he have an accident.这两句对吗?为什么? unless 与if not帮我分析一下例句：I'll be surprised if he doesn't have an accident.（这句可以用unless来换么?为什么）I'll be back tomorrow unless there's a plane strike.(为句可以用if not来换么?为什么）unless=if not, 英语翻译we can not exercise our influence unless we have an organ. I would not take the road through Moria unless I have no other choice.这句话怎么翻译呢 unless i have your essay in hand. I couldn’t have got to the meeting on time ________an earlier train.A.if I had not caught B.unless I had caughtC.if I did not catchD.unless I caught为什么不是B?我有点不太理解. i will not believe you unless i___ (see) it with my own eyesam seeing will see saw have seen 英语翻译My name is sandra.I like playing both video and computer games.I like most games,unless they are boring.My favorite hobby is reading,but if I can play games ,I will not read.My favorite video game is WAR CRAFF.DO you have an e-mail?I do.I I will not believe you unless I have seen it with my own eyes.此句中的从句为什么要用现在完成时 I will not leave unless you show up 一道单项选择英语题~~~~~~~~~---Mom,I want to play football.---NO,you ____stop unless you finish your homeworkfrist.A.don't have toB.mustn'tC.not have toD.have to not选哪个? I ------(not wash)clothes at home I have a/an idea.I think it is a/an idea I________(not have)an aunt. I have not take an umbrella with me.If it rains,I will be all( )填空 I am not free this afternoon because I have an appointment with my dentist. I do not have