When welding or burning aboard a vessel, you must be certain that the space （）.

When testing a Class A EPIRB you will know the EPIRB is working properly if you hear on 99.5 Mhz FM or any vacant frequency on a nearby AM radio（）.

—Which foreign language are you better at, English or French?—I am sorry I know _______of English and _______of French.

西北工业大学外国语学院因为是西北工业大学最年轻的学院，在早期建设时未专门修建学院楼，现在外国语学院学院楼是原校什么建筑？（）

As a visitor or guest in either a Chinese home or restaurant you will find that（）manners are important to the enjoyment of your meals and keep you in high spirits!

The court may reduce or deny remuneration if it appears that the salvors have by their fault （）or have been guilty of theft，receiving stolen goods，or other acts of fraud.

A semisubmersible which will not remain upright and will assume a list either to port or starboard is likely to have（）.

Passage 3　　● Read this letter about a complaint.　　● Choose the best word to fill each gap. Mark one letter (A, B, or C) on your book　　● Do not use any letter more than once.A Letter of ComplaintDear Sir or Madam,　　A few months ago I purchased a washing machine (Sanyo XQB50-68) produced (29)______ your factory. After a few weeks I found that it (30)______seriously damaged the clothes. I asked you to change one for me, (31)______ you did. Now I want to ask you to change(32)______ one for me again.　　This one does not damage my clothes any more, (33)______ I have found that it tangles the clothes seriously and (34)______ it automatically begins to spin the water out, the machine shakes (35)______ heavily that it stops by itself. In the instruction booklet you have not mentioned this defect and (36)______have you told the user how to so1ve the problem. I am quite annoyed by the fact that sometimes when I came back (37)______ work to take the clothes out to dry, they were still (38)______.When I am at home, I have to tend it frequently in untwisting the entangled clothes. Is that (39)______ you call you machine “fully automatic”? P1ease change a new one for me that will not entangle the clothes. (40)______, I would ask you to give my money back or I would complain to the Consumer’s Association.Yours sincerely　　29. A in　　　　B for　　　　　 C by　　30. A is　　　　B had　　　　　 C has　　31. A which　　 B that　　　　　C. All　　32. A new　　 　B this　　　　　C that　　33. A but　　　 B. And　　　　　C because　　34. A before　　B. After　　　　C when　　35. A more　　　B so　　　　　　C less　　36. A so　　　　B either　　　　C neither　　37. A to　　　　B from　　　　　C before　　38. A unwashed　B washed　 　　 C wash　　39. A that　　　B which　　　 　C what　　40. A So　　　　B otherwise　　 C But

Duty is an act or a course of action that people __________you to take by social customs, law or religion.

Duty is an act or a course of action that people ______you to take by social customs, law or religion.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

When testing a Class A EPIRB you will know the EPIRB is working properly if you hear on 99.5 Mhz FM or any vacant frequency on a nearby AM radio（）.