您好!为什么While linda was buying .这里可以用瞬间动词.

您好!为什么While linda was buying .这里可以用瞬间动词. while linda was buying a newspaoer at the train station中的buy while linda was buying a newspaper at the rain station?翻译 leave是瞬间动词啊可以用was leaving吗? what happend while Linda was on the telephone 中while是否可以写成wh the alien was buying a cap,i called my friend 用when还是while what happend while Linda was on the telephone while不是不可以用在句中 when 和 while 当前后两个动词都是持续性用?都是瞬间动词用? I was crossing the bridge 这里Was是BE动词 后面应该是 aross 为什么这里用 Cros As/While 的用法.延续性动词还是瞬间动词 为什么这里用动词原形? 当琳达找戴伟时,他在哪儿?Where was davy while linda ( ) ( )( )him.