英语 填介词2 We used to order large quantities --------

英语 填介词2 We used to order large quantities ________1.We used to order large quantities ________ Korean manufacturers,but now we are looking ________ new suppliers.2.We will certainly keep your quotation sheet ________ file for future reference.3.May we have your quotation,together ________ other trade terms?4.If you can produce goods ________ our design,let us have details of costs.5.________ the latest edition of A.V.News we have learned ________ your DVD players.6.We wish to enter ________ business relations ________ you ________ the basis of equality and mutual benefit.7.If the goods are ________ the standard we require,we will place a substantial order.8.The customer asks ________ a 15% discount ________ net list prices.9.Please let us know what quantities you are able to deliver ________ regular intervals.10.10.If any information that you furnish is confidential,it shall be retained ________ such.