We wih to acknowledge receipt of your letter of March 15,（）reached us yesterday.

We hope that you wil look（）the cause of the defective goods.

We are glad to enter （） business relations with your corporation.

We hereby register a claim with you（）the basis of here,we can obtain a number of orders for you.

We hope this unfortunate incident wil not afect the friendly relations（）us.

（）you know,this is a popular brand,which can see easily in our market.

Your quotation happens to be exactly the same（）we have received from Australia.

If the first shipment is satisfactory,we can（）with you some repeat orders.

If you will send us a catalog by air,we shall（）very much.

Risks other（）All Risks and War Risk can be covered if the extra pr－ enium should be borne by the buyer.