填空题
on/upon
We are awaiting your revised draft()keen interest.
填空题We are awaiting your revised draft()keen interest.
We are glad to enter () business relations with your co...
填空题We are glad to enter () business relations with your corporation.
We have established an irrevocable letter of credit()yo...
填空题We have established an irrevocable letter of credit()your favour with the Bank of China,Guandong.