【題目】The math problem is so difficult that only few students can _______.

A. work on itB. work for itC. work it overD. work it out

【答案】D

【解析】

句意：這個數(shù)學題是如此難以至于只有少數(shù)學生能做出來。work on it從事，致力于；work for it為了它工作；work it over研究，檢查；work it out計算出。根據(jù)句意The math problem…可知，這里應表示“算出數(shù)學題”，故選D。

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