The border was actually two towns, though no one was big enough to amount to anything.（）

单项选择题Grocery prices were boosted again last month.（）

A. attacked
B. stabilized
C. fixed
D. raised

单项选择题Such legal entities provide the means for international cooperation and support of macroprojects related to the moon and mars that encourage global private sector participation.（）

A. existences
B. vitalities
C. persistences
D. complicities