last year seven british citizens died ((while)) putting up their chrismas decoration可不可以用when?为什么用while?

分类: 作业答案 • 2021-12-20 03:22:04

问题描述：

last year seven british citizens died ((while)) putting up their chrismas decoration
可不可以用when?
为什么用while?

答

可以用when，都表示“当……时”

答

while后引导的做表语,表示进行一个动作的时候在做另外一个动作.而用WHEN,从意思上讲不通,从语法上还需要把句子改成...when they were putting up .