it was raining hard___ i was on my way home yesterday空里应填when还是while 为什么?

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it was raining hard___ i was on my way home yesterday空里应填when还是while 为什么?
it was raining hard___ i was on my way home yesterday
空里应填when还是while 为什么?

it was raining hard___ i was on my way home yesterday空里应填when还是while 为什么?
when
用when引导时间状语从句时主句使用过去进行时而从句使用过去式

while ,表示一段时间之内
如果后半句为i started to go home ,就要用when了

when

when

while,后面的动作是延续性的