while he was reading the letter,he heard a knock at the door这句话对不对拜托各位了 3Q

While he was waiting for the bus, he was reading a newspaper.为什么用while引导 He was sleeping___she was reading a magazine. A.He was sleeping___she was reading a magazine. A.until B.before C.after D.while While he was e() While he was waiting for the bus,he was reading a newspaper.为什么由while引导,放于句首,可以放于句中吗? I was doing the house work while he was just sitting there reading the newspaper.这个句子中reading 为什么read后要加-ing 形式啊 he was drawing something on the desk (while) i was reading a story yesterday.这个句子能不能用when代替while?解释为什么? While we were reading the newspaper,the light---------(go)out.he was watching the game,his mother-- While she was reading,I was watching TV 对吗was reading While she was reading,I was watching TV 对吗was reading while he was studing为什么要was He was drawing something on the desk ___I was reading a story at ten yesterday.A:after B:while C:before D:when选哪个呢?为什么? while he was reading the letter,he heard a knock at the door这句话对不对拜托各位了 3Q Mary was reading while Bill _______(repair) the radio. I was doing my homework while my father was reading newspapers为什么填while 判断下列句子中while的含义：1、Jane was dressed in brown while Mary was dressed in blue.2、While I admit that the problems are difficult,I don't agree that they cannot be solved.3、He fell asleep while(he was) reading a grammar book. 过去进行时中过去进行时中when与while的区别及用法(最好举例说明)1.He fell asleep ( )he was reading.A.while B.when C.both A ahd B 有关 when while的题目He was pretending ________ while his mother came in his study.A.reading B.to be reading C.read D.be reading B 不是说while后面的动词要用延续性的,可是这了的come是短暂动词啊? while she＿the newspaper,Helen＿asleep.A was reading fell B was reading was falling 选哪个,为什么