In the past few months, the country a further tightening of supply restrictions, making fuel and food supplies more difficult to obtain.
A. would witness
B. witnesses
C. has witnessed
D. had witnessed
网友回答
A. would witness
B. witnesses
(答案→)C. has witnessed
D. had witnessed
解析：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。