结构推理
Write a reply to the following letter after reading it． Enquiry Dear sir, We have seen your advertisement in the New Asia Journal and are particularly interested in your portable typewriters, but we require a machine suitable for fairly heavy duty． Please send me your current illustrated catalogue and a price list． Your faithfully,
【正确答案】Dear Sir, We were very pleased to receive your letter of 5th April answering our advertisement for typewriters． As requested we enclose a copy of our latest illustrated catalogue and current price list． We think the "Portable 95" is a machine that would suit your purpose very well． It weighs 6．5 kg and is a bit heavier than the usual portable, but it is good for heavy duty and at the same time conveniently portable when carried in its case． We have one of these machines in stock and we shall be pleased to arrange for you to try it． Although costs have been rising since March , we have not yet raised our prices, but may have to do so when present stocks run out． We therefore advise you to place your order with us at once． Yours faithfully,