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Directions: Read the following passage. After reading it, you should complete the information by filling in the blanks marked 48 to 52 (in no more than 3 words) in the table below. You should write your answers on the Answer Sheet correspondingly. This is the second month running that your delivery has been late in arrival. Our current order for stationery is already 6 days overdue. We have a number of valued customers who are being put to some inconvenience. There seems to be no obvious reason why your normally prompt deliveries should become so unreliable. I would be obliged if you would look into this matter as soon as possible. Ours is a small, family business in a town. We depend very much upon the good will of our customers. I'm sure you will settle this problem at your convenience as soon as possible. Your faithfully, Han Lu This letter is written for complaining that the 48 has been late in arrival. His order for stationery is already overdue for 49 . Mr. Han doesn't know why the 50 deliveries have become so unreliable. His business is a small, family one that depend very much on the 51 of his customers. He hopes the problem can be solved 52 as soon as possible.