【题目】 We look forward to receiving your response at an early date.

2. We would be grateful if you would expedite the establishment of the L/C so that we can ship the order on time.

3. We would like to remind you that the delivery date is approaching and we have not yet received the covering letter of credit.

4. Please make sure that the L/C instructions are in precise accordance with the terms of the contract.

5. This is in regards to your order for 5,000 widgets and our sales confirmation No. 341.

正确顺序：53214

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