阅读文章，回答下列各题： 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 Mr．Han writes to complain about 46__________ of the ordered goods． His order for stationery has already been late for47__________ when this letter is being written． Mr．Han feels it a pity that the 48__________ deliveries have become so unreliable． According to Mr．Han，this incident has caused 49__________to his customers，upon whose 50__________his small family—run business depends． __________