11He suddenly became（）that he was the only man who wasn't wearing a suit at the party.
A.alert
B.conscious
C.rational
D.sensible
开始考试练习点击查看答案12Although my chance（）with this famous artist was 30 years ago, I still remember it very well.
A.encounter
B.collision
C.confront
D.appointment
开始考试练习点击查看答案13These students（）the cause of helping those who are not able to help themselves.
A.are content with
B.are sound like
C.are absorbed at
D.are committed to
开始考试练习点击查看答案14Once you have had the disease, you are（）to it for the rest of your life, which means that you cannot get it again.
A.exempt
B.immune
C.unaffected
D.insusceptible
开始考试练习点击查看答案15When applying for a job, make sure you（）the skills and knowledge you have that an employer would find important to the job.
A.emphasize
B.insist
C.enforce
D.accent
开始考试练习点击查看答案16There is no doubt that this new type of tire（）a major advance in road safety; you feel safer when driving on the highway.
A.ilustrates
B.exhibits
C.demonstrates
D.represents
开始考试练习点击查看答案17She was at her（）in her home in the countryside.
A.happy
B.happier
C.happiest
D.happiness
开始考试练习点击查看答案18He doesn't（）into self-pity because of his job as a trash man; instead, he feels proud of it as he thinks it is an essential task.
A.withdraw
B.retreat
C.retire
D.reverse
开始考试练习点击查看答案19Unemployment has come down slightly but this does not（）the fact that it is still a major problem.
A.alter
B.adapt
C.deviate
D.modify
开始考试练习点击查看答案20They made it a rule that all complaints from customers should be（）quickly and efficiently.
A.explored
B.inspected
C.investigated
D.probed
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