单选题 We （）to allow you a special discount if you incfease your order to 5000 pairs.

单选题 We shall highly appreciate （） if you will send us a brochure and two sample books by air immediately

单选题 We hope that you will find many items of（） to you.

单选题 We are sending you by separate airmail a copy of our（） catalog for your reference.

单选题 We thank you for your e-mail of November25 （）your purchase of 10MT wild rice

单选题 Contracts must be renewed one week （）their expiration

单选题 We are arranging for an inspection tour of （）the material was processed

单选题 Our usual terms of payment are （）L/C and we hope they will be satisfactory-（）-you