it was crazy of you to take a taxi英语选择

while 连接时间段 when 连接时间点 乘公车只是一个短暂性动作 则用when
when 与while 的区别
一.引导时间状语从句时,WHILE连接的是时间段,而WHEN连接的多是时间点
例如What does your father do while your mother is cooking?
What does your mother do when you come back?
二,WHILE可以连接两个并列的句子,而WHEN不可以
例如I was trying my best to finish my work while my sister was whtching TV
三,WHEN是特殊疑问词,对时间进行提问,WHILE不是.
例如,When were you bron?