急!关于 until 和 unless单项选择You needn't getmuchworriedabout a cough _____it lasts five or more days.A.until B. unless答案选unless ,求分析until为什么不对You needn't get much worried about a cough____ it

unless和until的区别, 急!关于 until 和 unless单项选择You needn't getmuchworriedabout a cough _____it lasts five or more days.A.until B. unless答案选unless ,求分析until为什么不对You needn't get much worried about a cough____ it We will be punished______we break the law. 单选A,until B.ifC.unless D.though 一道关于unless until区别的单选题下面这题-May I go out to play now,Mom?-No,you can’t go out ____ your homework is being done.A.until B.unless但是我清楚为什么不能选A.但是我不清楚为什么不能选A。之前我的提问 关于unless和until的高一选择题-was his father very strick with him when he was at school?-yes.he had never praised him _____ he became one of the top students in his grade.空里是unless和until的选择,一般区别是unless引导条件状 unless和until,你懂得~please don”t get off the bus——it stops。（until还是unless）意思都差不多，为什么是 until? 英语选择题（关于unless 和until）Was his father very strict with him when he was at school?Yes.He had never praised him____he became one of the top students in his grade.A.after B.unless C.until D.when应该选哪个呢?为什么? 英语问题,如何区别not...unless...,not...until...和not...before... 英语:until 和 unless用法中的一般现在表将来是不是用在从句中 not until 和unless的区别 我怎么觉得意思都差不多呢 until 和unless区别i won't write to him ____he writes to me first.A until B unless为什么不选 until呢 not until 我不写信给他直到他首先写给我 until 和unless到底怎么区别呢 until 与unless的区别是什么 unless until if. notunless until if. not 区别用法 关于until的用法有一中考题：Don't come into the lab______ you are asked to.这道题可以用unless,为什么不能用until? 一道英语单选题,I didn't manage to work out the problem( )the teacher had explained how.A.until B.unless C.when D.before为什么呢? 高三英语还跟急关于until和before的!这句话是,He had never exercised until joining the club 9 months ago.为什么不能把until改成before?很急! until 和unless 有何区别i won't play with you unless you give up smoking .until 我觉得都可以,那么说这两个词有什么区别?she wouldn't go out with me again unless i gave up smoking 此处可以用until until 用于否定句时，主 unless和until的区别He did not work until I asked him to.和He did not work unless I asked him to.有什么区别?第二个句子是不是不对?