A company has sent you a bill for the wrong goods.
Unfortunately you sent us a bill for the wrong goods. Please could you send us a correct bill as soon as possible.
Your new photocopier has broken down. You have to write to the company who sold it to you.
Unfortunately our new photocopier has broken down. Please could you send a repairman to fix it for us as soon as possible.
Two temporary secretaries do not speak English. You have to write to the agency who sent them to you.
Unfortunately two temporary secretaries you recommended to us do not speak English. We would be grateful if you could recommend two more who could speak English.
You keep receiving letters for someone else. You have to write to the post office.
Unfortunately I keep receiving letters for someone else. Please could you make the address clear before you deliver letters every day.
One of your staff keeps parking his car in front of the main door, the space which is reserved for the MD.
I should like to remind you that the space in front of the main door is reserved for the MD.
Someone is interested in purchasing a large quantity of your simplex cameras. Tell him about 25% discount for large orders.
I should like t draw your attention to the fact that we offer about 25% discount for larger orders.
One of your staff arrives half an hour late for work every day. (She should start at 9.30.)
I hope that it is not necessary to remind you that work start at 9: 30 every day.
Someone is interested in your products. Tell him that you guarantee that your prices are the largest in the country.
I should like to point out that we guarantee that all prices are the lowest in the country.
环境：We must insist that you deliver the goods immediately.
环境：(What warnings would you give these people?)
A company that has not paid your bill
Unless you pay the bill, we will be forced to take legal actions.
Another company that is using your company’s car park
If you do not move your car away from our park, we will be forced to turn to the police.
An employee who always arrives late for work
Unless you come to work on time, we will be forced to fire you.
A builder who has left a lot of their tools in your office
If you do not take your tools from our office, we will be forced to throw them away.
a. 阐述发生的问题：it is now over nine months since we placed this order and we are still waiting for the cabinets.
b. 使用句型12：I should like to point out that we have already paid for these cabinets.
c. 使用句型 13：we must insist that you deliver them immediately.
d. 使用句型14：unless we hear from you within 7 days we will take legal action.