A、insist forB、insist onC、stess inD、insist inwe have to ……

单项选择题To increase this discount rate for all of our accounts would seriously () our firm .

单项选择题Method of payment shall be () the Irrevocable L C payable()sight ()U.S. Currency.

单项选择题Mr.Yin could agree ( ) D P terms.

单项选择题On account ( ) difference in taste, your designs do not suit this market.

单项选择题July shipment is acceptable() our customer.

单项选择题We will, however() to this matter and contact you by cable, once the supply position improves.

单项选择题()separate cover, we have already sent you samples () various sizes of shoes.

单项选择题We appreciate your cooperation and trust the shipment will prove ()your entire satisfaction.

单项选择题()your request, we gave you an estimate of approximate requirements for next year.

单项选择题Payments should be made ( )sight draft.

单项选择题Your letter has () our careful attention.

单项选择题Mr. Brown inform. us ()you are exporters of cotton bed sheets.

单项选择题The goods you made according to the sample given are ()your favor.

单项选择题Many reports have been received from our ()agents in Korea that there are very heavy demands () the devices.

单项选择题We would be very pleased to be of service () you.