Dear Mr. John Campbell, We have received your letter of November 20, 2009 about your latest model of mountain bikes , in which we are very much interested. We believe that they will sell well here in the U.S.A. Please send us further details of your prices and terms of sales . Your favorable quotation ( 报价 ) will be appreciated. We look forward to hearing from you soon. Yours sincerely, Robert Loftus Marketing Manager 56. What product is inquired about in the first letter? The latest model of _____________