The company at which my sister works is in the east of the city.可不可以将at 放在works的后面呢

The company at which my sister works is in the east of the city.
可不可以将at 放在works的后面呢

可以的 the company 在后面的my sisiter works at the company ,the company是充当的地点状语,可以用where代替.这个公司在城市的东边,这个公司是我妹妹工作的公司.at which 此时和where的作用一样,可以分开写的.

可以~

可以，这属于定语从句中介词提前的情况。at 放works后面时which可省略，at 放which 前时，可把at which 换成where .