什么时候用when does when is /are

怎么判断when后面用is/are还是do/does 一般疑问句开头什么时候用does 什么时候用is are 什么时候用do does什么时候用is am are 什么时候用do/does ,什么时候用is/are when does和when when is he……和when does he……怎么区别用is还是does? when is your birthday?Where are you from?请问在问句的your之前,什么时候用i when is与when does有什么区别 when is he shaving today when does he shave today When is it open?还是When does it open? 什么时候用are\is\do\does做一般疑问句? 英语急转弯,How long is a shoe?When does it rain moneY?why are fil