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1. It was a great pleasure for us to receive your letter. 2. We would welcome the opportunity to co-operate with you. 3. We would like to receive your catalogues periodically. 4. May I have the pleasure of inviting you to visit our firm? 5. May I take this opportunity to wish you a Happy New Year? 6. We would like to continue this trend with an educational exchange among educators of our two countries. 7. We are happy to receive your letter in English