关于英语的时间状语从句时间状语从句中能有过去时么?比如:he was very happy when he played computer games

问题描述:

关于英语的时间状语从句
时间状语从句中能有过去时么?比如:he was very happy when he played computer games

不能这样用,如果主句用过去时,从句必须用一般现在时
从句是过去时的话,主句可以是过去完成时~