Aii the lights were _all night long.A burning B burnt C being burnt D getting答案A為什么要用過去進行時,還有過去進行時可以在什么情況下使用呢?

熱心網友

在這里表示一直持續的狀態１． 過去進行時表示在過去某一時刻或某一段時間內正在進行或者持續進行的動作。This time yesterday Mike was writing a letter．My mother was doing some shopping yesterday afternoon．２． 過去進行時和when while引導的狀語從句連用，表示一個動作正在進行（或者繼續進行）的時候，另一件事情發生了。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 引導的狀語從句都可表示正在進行的動作，但while更強調動作持續一段時間。用while 連接的狀語從句還可表示一個動作正在進行的同時，另一個動作也在進行之中。例如：While my father was reading I was doing my homework．While Dad was washing his car Mum was cooking．。