The letter of credit is a method of p__1___. It is issued by a bank at the request of an i___2___. This method of payment is commonly adopted in our f___3___ trade today. Several months ago a sales c__4___ was signed between the China National Foodstuffs Import and Export Corporation and the Pacific Trading Company, Singapore. Payment by an i___5___ letter of credit was agreed upon by both parties. Mr Wang of the Foodstuffs Corporation attended to this t___6___. As stipulated in the contract, the Buyer should open a letter of credit in f___7___ of the Seller 30 days before the month of s___8___. The L/C reached the corporation in time. Wang, an experienced salesman, knew that it was necessary to c___9____ up the L/C with the contract and see whether they were in agreement. Generally, the letter of credit specifies the beneficiary's name, description of goods, quantity, unit price, total amount, ports of loading and destination, price terms, payment terms, shipping documents, shipping validity, negotiation validity, etc. When he checked the L/C, Wang found that all its clauses were all right except for the shipment validity. So, Wang advised the Pacific Trading Company by fax to make amendment accordingly. About a week later, the corporation received the a__10____ advice through the Bank of China. Then everything was right. After the Wang contacted the forwarder for shipping arrangements.