这句为何用的是 this is why…? 而不是 that’s why… 呢?我们平常不是都说 that’s why…吗?这样用有什么特别之处吗?This is why the local people proudly call their town “Dayan”, meaning the Town of the Big Ink Stone.材料来源:北师大高中英语教材...
...nmental pollution.要求改为部分倒装,Only when提前,我开始写的,Only when do we solve the problems of envirnmental pollution,natural disasters will reduce.答案是这样,Only when we solve the problems of envirnmental pollution,will natural disasters reduce.我...