以下关于“我愿意借此机会，我谨代表……，向……表示真诚的感谢。”的英语表述，正确的是 A: On behalf of sb， I’d like to take this opportunity to express our sincere thanks to sb 。 B: On behalf of sb， I’d like to take this opportunity to extend our sincere thanks to sb 。 C: On behalf of sb， I’d like to take this opportunity to express our sincere thanks to sb for their earnest invitation。 D: On behalf of sb， I’d like to take this opportunity to express our sincere thanks to sb for gracious hospitality we have received since we set foot on sp．

We assure you ______ our close cooperation. A: about B: with C: at D: of

I should like to_____ this opportunity to express my thanks for your Help. A: take advantage of B: make up for C: get the best of D: look down on

May I take this ___________to express my thanks to you all? A: opportunity B: benifit C: protect D: understanding

In order to_____ our business to your country, we are writing to you to _____ possibilities of cooperation.