I don't know how to deal with customers _____ they make a request to return our products.

问题描述:

I don't know how to deal with customers _____ they make a request to return our products.
A.by the time B.the first time C.every time D.in time
为什么选C,一次就可以了吧,难道这人是个*?

嗯.我翻译一下好了:每当有顾客要求退货时,我都不知如何应对.所以说“every time they make a request to return our products”在这里是个条件,every time可以理解为“每当.时”.你是想选B吗?按照你的理解,customer...