While we_(wait)for the bus,a girl _(run) up to us怎么填

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Whilewe_____(wait)forthebus,agirl_____(run)uptous怎么填Whilewe_____(wait)forthebus,agirl_____(run)uptou

While we_____(wait)for the bus,a girl _____(run) up to us怎么填
While we_____(wait)for the bus,a girl _____(run) up to us怎么填

While we_____(wait)for the bus,a girl _____(run) up to us怎么填
were waiting
ran

While we(are waiting)for the bus, a girl (is running) up to us
或者were waiting,was running
while 表示并列的进行时。

were waiting ran

While we__are waiting___for the bus, a girl __is running___up to us。
当我们在等车时，一个女孩正跑向我们。
while引导的从句表示，从句中的动作正在发生时，主句中的动作也同时发生。所以主句和从句的时态必须一致，并且都是进行时态。如果根据语境动作全都发生在过去的话，把are和is换成were和was就行了。

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