填空题
We hope that you wil look（）the cause of the defective goods.
about
填空题 （）you know,this is a popular brand,which can see easily in our market.
填空题 Scince we are well connected（）the department stores here,we can obtain a number of orders for you.
填空题 We hereby register a claim with you（）the basis of here,we can obtain a number of orders for you.
