Aii the lights were _all night long.A burning B burnt C being burnt D getting答案A为什么要用过去进行时,还有过去进行时可以在什么情况下使用呢?
热心网友
在这里表示一直持续的状态１． 过去进行时表示在过去某一时刻或某一段时间内正在进行或者持续进行的动作。This time yesterday Mike was writing a letter．My mother was doing some shopping yesterday afternoon．２． 过去进行时和when while引导的状语从句连用，表示一个动作正在进行（或者继续进行）的时候，另一件事情发生了。例如：The teacher was giving us a lesson when Tom came into the classroom． While we were having supper all the lights went out． ３． when 和 while 引导的状语从句都可表示正在进行的动作，但while更强调动作持续一段时间。用while 连接的状语从句还可表示一个动作正在进行的同时，另一个动作也在进行之中。例如：While my father was reading I was doing my homework．While Dad was washing his car Mum was cooking．。