题目内容
93. The diligent student refused the help of others and insisted on working out the difficult maths problem _____.
A. on his own B. in his own C. of his own D. for his own
A
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题目内容
93. The diligent student refused the help of others and insisted on working out the difficult maths problem _____.
A. on his own B. in his own C. of his own D. for his own
A