Willing to work very hard at sth.坚定的;尽心尽力的
A. intensive
B. committed
C. controversial
D. conventional
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have a bad effect on sth. or sb. over a long period of time (对……产生不利影响)
A. interfere with
B. cut corners
C. takea toll on
D. cut back on
Testing students by examinations has long been regarded as a reliable way to () students' ability.
A. decrease
B. alter
C. abandon
D. assess
A heavy commitment () a part-time job during the academic year, say, working20 hours per week or more, undermines and significantly interferes with schoolachievement and commitment.
A. to
B. of
C. on
D. about