D．Barrier

　　19.．Once your body is ________ to nicotine，it’s very hard to stop smoking.

　　A．tough

　　B．sensitive

　　C．addicted

　　D．automatic

　　20．It took a while for me to ________ myself to all the new rules and regulations.

　　A．submit

　　B．concentrate

　　C．accustom

　　D．expose

　　21．The employees were tired of working extra hours and some even ________ their jobs.

　　A．teased

　　B．acquired

　　C．tolerated

　　D．quit

　　22．You ought to be ________ of yourself—treating your sister like that!

　　A．ashamed

　　B．embarrassed

　　C．desperate

　　D．abnormal

　　23．How she managed to pass her exam after doing so little work is beyond my ________.

　　A．motivation

　　B．conclusion

　　C．impression

　　D．Comprehension

　　24．The doctor told her that her badlyinjured husband had a 5050 chance of ________.

　　A．conflict

　　B．survival

　　C．withdrawal

　　D．convenience

　　25．He was accused of having a ________ against his women employees.

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