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In the past few months, the country _____ a further tightening of supply restrictions, making fuel and food supplies more difficult to obtain.
A.would witnessB.witnessesC.has witnessedD.had witnessed
C

试题分析:考查时态:句意:在过去几个月中,这个国家已经见证了进一步的供应限制,使得燃料和食物供应更难获得。因为时间是In the past few months,和现在完成时连用,所以选C。
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