英语：问道remain的题They grew rich _____ their little brother remained poor.A.when B.while-------------------------------

英语：问道remain的题They grew rich _____ their little brother remained poor.A.when B.while------------------------------- 问道立体几何的题 问道三角函数的题, 【高中英语】一道表语从句的完成句子题People are content to let things ______ (保持现状) while they talk about progress.(remain)答案给的是：remain as they are我写的是remain what they are求问为什么不能用what而是 问道题! remain silent ,remain quiet.区别是什么英语 ASTM A193 Gr.B7中 的Gr 问道英语选择, 英语as, not.until,remain三个词的用法 英语contain bargain explain remain 读音不同的一个 问道幂级数求收敛半径的题 问道幂级数求收敛半径的题 remain doing 和remain done的区别 remain in bed中remain的意思 还有高中数学高手在线吗 问道题在的说一下 问道题 remain的adj remain的中文意思? 关于remain的短语