We are making you our quotation for shoes ____.

Wehavetopointoutthatthepostponementofthefulfillmentofthecontract______causeduscertainexpenses.

We have made ____ that we would accept terms for your present order. 

We have received your letter of September 12, ______ we are glad to know that you are interested in our electric heaters.

We regret ______ to accept your terms of payment and therefore have to return the order to you.