精选优质文档-倾情为你奉上 试题专练 Fill in the blanks with appropriate words: 1We have established an irrevocable letter of credit_your favour with the Bank of China,Guandong4Our foreign trade policy is based _equality nad mutual benefit5We shall book a trial order with you,_ goods are competitive in price and of good quality6As we are heavily committed,we are sorry that we are not in a _ to accept new orders9We hereby register