she does not know when it __will rain_____(rain) when it _rains___(rain),I _will tell____(tell) you. Please tell me when it _rains______(rain). 请告诉我这样填的理由
When it (rains), I will (tell) you. when引导的时状语从句,如果谓语动词用一般现在时,主句则用一般将来时;如果when从句的谓语用一般过去时,主句则用过去将来时。 Please tell me when it will rain or when it rained. rain用将来时,这句话的意思是,请告诉我,什么时候会下雨;用过去时意思是,请告诉我什...