buy是非延续性动词为何与while搭配?while引导时间状语从句与延续性动词连用可新目标八下第三单元有一句为While the alien was buying a souvenir,the girl called the police.buy 明明是非延续性动词,怎么和whil

buy是非延续性动词为何与while搭配?while引导时间状语从句与延续性动词连用可新目标八下第三单元有一句为While the alien was buying a souvenir,the girl called the police.buy 明明是非延续性动词,怎么和whil while 后加延续性动词还是非延续性 急 急 关于英语延续性动词与非延续性动词的区别什么是延续性动词?什么是非延续性动词?它们的区别是啥?举一些详细实例? buy的延续性动词是什么 become study 是延续性动词还是非延续性动词 die 是延续性动词还是非延续性动词? change 是延续性动词还是非延续性动词 when/while接点动词还是延续性动词? until与while的区别分别与延续性动词还是短暂性动词连用 请问有哪些是延续性哪些是非延续性动词? begin是延续性动词吗还是非延续性动词?忘了问！怎么变 延续性动词？ become的延续性动词是什么?就是非延续性动词转变为延续性动词 现在完成时后是非延续性动词应该怎么办 谁能告诉我什么是非延续性动词. remain keep是非延续性动词吗? 帮忙总结瞬间动词与延续性动词的转换!如:buy-haveleave-be away we recognized his voice ______ he spoke on the phoneA while B after C in case D immediately这里的spoke是延续性动词还是非延续性动词 immediately是否只可接非延续性动词? 延续性动词跟非延续性动词怎么分辨啊,还有就是非延续性动词怎么变为延续性动词啊!