精选优质文档-倾情为你奉上I. Fill in the blank with the proper preposition.1. Id like to direct your attention _ the quality _ the goods which is superior_ that of other makes.2. We refer _ your offer _ 16th March.3. If you could make a reduction _10% _ quotation, we have confidence_ securing large order _ you.4. Thank you _ your quotation _ October 8th _ 1000 pieces _ the captioned goods.5. The goods you ordered has been duly shipped_