题目

--Today’s young people can’t live without smart phones.--Their eyes are glued to the screen wherever they go, even while they_____ meals.A. have B. are having C. were having D. will have 答案：【答案】B【解析】句意：——今天的年轻人离不开智能手机。——无论走到哪里，他们的眼睛都盯着屏幕，即使是在吃饭的时候。考查现在进行时。while引导时间状语从句时，强调主句和从句的动作同时发生，从句中常用进行时态；根据Their eyes are glued to the screen wherever they go, even while可知从句强调的动10．四条河流中冰期最长的是（　　）A．a河B．b河C．c河D．d河