①It (was raining) when they (left) the station.
当他们离开车站时,天正下着雨.
主句为过去进行时,从句为过去时.
②When I (got) to the top of the mountain,the sun (was shining).
当我到达山顶时,阳光正照耀.
①It (was raining) when they (left) the station.
当他们离开车站时,天正下着雨.
主句为过去进行时,从句为过去时.
②When I (got) to the top of the mountain,the sun (was shining).
当我到达山顶时,阳光正照耀.