Influenced by the financial crisis, export has dropped by a large （）since last year. A.gapB.differenceC.balanceD.margin 正确答案：margin

The poorly-paid civil servants are （）to bribery. A.vulnerableB.sensitiveC.subjectedD.susceptible 正确答案：vulnerable

Since 1970s this small town has gradually been （）into a huge modern city. A.transferredB.transplantedC.transmittedD.transformed 正确答案： transformed

They are now under a great deal of pressure to tighten their airport （）. A.dangerB.solidityC.insecurityD.security 正确答案：security

The sale usually takes place outside the house, with the audience （）on benches, chairs or boxes. A.having seatedB.seatingC.having been seatedD.seated 正确答案：seated

Those who （）doctor-assisted suicide say the terminally ill should not have to suffer. A.assistB.acknowledgeC.advocateD.admit 正确答案：advocate

Some people think that nuclear war would mean the end of （）. A.cultivationB.civilizationC.socializationD.sophistication 正确答案：civilization

We booked rooms at the hotel （）we should find no vacancies on our arrival. A.wheneverB.ifC.sinceD.lest 正确答案：lest

Tom, did it ever （）to you that you would be punished for cheating in exams？ A.happenB.occurC.reflectD.strike 正确答案：occur

Troy was very clever for his age and had already figured out ways to （）her. A.outsmartB.outgrowC.beguileD.betray 正确答案：outsmart

J.P. Morgan Canada said the spread of the SARS virus could slash up to 1.5 （）points off April-June growth in Canada. A.percentageB.undergrowthC.commitmentD.recovery 正确答案： percentage

This nation has defeated tyrants and （）death camps, raised this lamp of liberty to every captive land. A.overseenB.enforcedC.liberatedD.unsung 正确答案：liberated