关于until和when的选择题是一道完形填空,里面有一段是When all the seats were taken,the driver started the engine.The conductor began to collect fares.When she came to an old man in worn-out clothes,he explained that he had spent all

关于until和when的选择题是一道完形填空,里面有一段是When all the seats were taken,the driver started the engine.The conductor began to collect fares.When she came to an old man in worn-out clothes,he explained that he had spent all 一道关于until的选择题It's dangerous ______it stopsA.until B.before为什么until不可以啊? 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 一道关于when和while的选择题_________did the bell ring?________ we were having dinner,the bell rang.A.when;when B.when;whileC.while;while D.while;when答案是B,可我觉得A、B都对.when可以用来代替while不是么,它既可 一道高中英语状语从句选择题There were some chairs left over ____ everyone had sat down.A.when B.until C.that D.where哪个是正确的,其它为什么不可以,还有分析下这个句子. 关于等比数列的一道选择题 一道关于等差数列的选择题 关于不定积分的一道选择题 一道关于少数民族的选择题, 一道关于矩阵的选择题 关于before的选择题He made a mistake,but he corrected it ( ) the situation got worse.A.when B.before C until我知道选B的原因,但不理解为什么不能选A和C呢?the situation got worse.已经构成一个句子,when 和until 怎不得? 一道关于级数的选择题 见图 一道关于圆周运动的物理选择题 一道关于词语运用的选择题 一道关于基因工程限制酶的选择题~ 要一道关于牛顿第一定律的选择题 一道关于阴坡阳坡的地理选择题 一道物理关于力的选择题...