【題目】He will come to understand your efforts sooner or later. It's just a matter of __________.

A. luck

B. value

C. time

D. fact

【答案】C

【解析】句意：他遲早會理解你的努力。這只是時間問題。luck運(yùn)氣；value價值；time時間；fact 事實(shí)。根據(jù)題意可知答案選C。

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