问题
选择题
Prices of food in that area ____ sharply since word came that the war would break out soon.
A．were cut down
B．were rising
C．have been brought down
D．have been going up
答案
D。
.考查时态。根据题意和since从句可知应用现在完成进行时，且此处指价格上升而非下降。