20. If you will send us a catalog by air, we shall ______ very much A. appreciated B. appreciating C. appreciation D. appreciate ...

11. Offer ( )our written acceptance [以我方书面接受为准的报盘 ] A. subject B. subject to C. to D. as to ...

24. Of course payment might be () if anything goes wrong with the documents. A. turned back B. refused C. turned out D. turn down ...

6. what is the meaning of " 优先报盘" ?( ) A. preferential offer B. first offer C. one offer D. prefer offer ...

8. If you will send us a catalog by air,we shall_____very much A. appreciate B. appreciating C. appreciation D. appreciate it ...

13. It is necessary that an arbitration clause _______ in the contract. A. will be included B. must be included C. be included D. has been included ...

20. Subject to satisfactory arrangements ______ terms and conditions, we should be pleased to act as your sole agent. A. as B. as per C. as if D. as to ...

6. We have seen your advertisment （ ）portable typewriters in "South China Morning Post". A. of B. on C. at D. in ...

19. Please see that such an _ does not occur again. A. mistake B. negligence C. oversight D. carelessness ...

3. We______some brochures_____to illustrate the products we manufactured . A. enclose ,to you B. enclose you，\ C. enclose,\ D. enclose,you ...