while引导从句用啥进行时态?主过从过?
while引导从句用啥进行时态?从句用啥时态取决于主句,主用现在时态,从用现在时态;主过从过?
while 引导的从句,表示动作在进行,所以用进行时。 从句的时态,和主句的时态要根据不同的主从句类型确定,不能一概而论。 例如: As soon as he comes back, I'll tell him. ? ?I have worked here since I graduated.
问:He often listens to music while workin
答:这个从句表伴随 伴随从局不必遵循主句时态详情>>
答:详情>>