希望知道答案和原因,
问题描述：
希望知道答案和原因,
There is concern that twenty year from now,the_____American won't be able to afford to sant his or her children to college.
A.extraordinary B.usual
C.average D.general
答
选C
average 意思是平均的,普通的,无特别的.如average people 表示普通人.
general 表示普遍的,反义词是specific,特定的.