Fill in the blanks with proper forms of the words or expressions given below. 注意可能需要词汇变形!注意词性,时态,单复数等。 introduce establish quality interest import receive This product is to all of us. We take this opportunity to approach you for the of trade relations with you. They have been drinks for many years. We look forward to your sample and pricelists early. Let me you to Mr. Li, our General Manager. We have been trying our best to provide washing machines to our customers.